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Finding the Fourth Proportional to 407,083.20, 610,515.45 and 170,376.90

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Solution

The fourth proportional to 407,083.20, 610,515.45 and 170,376.90 is: 255,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,083.20 : 610,515.45 = 170,376.90 : x
  2. Step 2: Convert to fraction form
    407,083.20/610,515.45 = 170,376.90/x
  3. Step 3: Cross multiply
    407,083.20x = 610,515.45 × 170,376.90
  4. Step 4: Simplify right side
    407,083.20x = 104,017,729,773.11
  5. Step 5: Solve for x
    x = 104,017,729,773.11/407,083.20
  6. Step 6: Final answer
    x = 255,519.58

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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.