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Finding the Fourth Proportional to 648,792.10, 973,188.15 and 205,560.10

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Solution

The fourth proportional to 648,792.10, 973,188.15 and 205,560.10 is: 308,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,792.10 : 973,188.15 = 205,560.10 : x
  2. Step 2: Convert to fraction form
    648,792.10/973,188.15 = 205,560.10/x
  3. Step 3: Cross multiply
    648,792.10x = 973,188.15 × 205,560.10
  4. Step 4: Simplify right side
    648,792.10x = 200,048,653,432.82
  5. Step 5: Solve for x
    x = 200,048,653,432.82/648,792.10
  6. Step 6: Final answer
    x = 308,340.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.