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Finding the Fourth Proportional to 656,433.96, 984,651.08 and 207,200.20

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Solution

The fourth proportional to 656,433.96, 984,651.08 and 207,200.20 is: 310,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,433.96 : 984,651.08 = 207,200.20 : x
  2. Step 2: Convert to fraction form
    656,433.96/984,651.08 = 207,200.20/x
  3. Step 3: Cross multiply
    656,433.96x = 984,651.08 × 207,200.20
  4. Step 4: Simplify right side
    656,433.96x = 204,019,900,706.22
  5. Step 5: Solve for x
    x = 204,019,900,706.22/656,433.96
  6. Step 6: Final answer
    x = 310,800.34

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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.