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Finding the Fourth Proportional to 509,166.80, 763,750.20 and 135,227.60

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Solution

The fourth proportional to 509,166.80, 763,750.20 and 135,227.60 is: 202,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,166.80 : 763,750.20 = 135,227.60 : x
  2. Step 2: Convert to fraction form
    509,166.80/763,750.20 = 135,227.60/x
  3. Step 3: Cross multiply
    509,166.80x = 763,750.20 × 135,227.60
  4. Step 4: Simplify right side
    509,166.80x = 103,280,106,545.52
  5. Step 5: Solve for x
    x = 103,280,106,545.52/509,166.80
  6. Step 6: Final answer
    x = 202,841.40

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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.