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Finding the Fourth Proportional to 510,500.88, 765,790.20 and 155,545.20

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Solution

The fourth proportional to 510,500.88, 765,790.20 and 155,545.20 is: 233,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,500.88 : 765,790.20 = 155,545.20 : x
  2. Step 2: Convert to fraction form
    510,500.88/765,790.20 = 155,545.20/x
  3. Step 3: Cross multiply
    510,500.88x = 765,790.20 × 155,545.20
  4. Step 4: Simplify right side
    510,500.88x = 119,114,989,817.04
  5. Step 5: Solve for x
    x = 119,114,989,817.04/510,500.88
  6. Step 6: Final answer
    x = 233,329.65

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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.