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Finding the Fourth Proportional to 340,328.92, 510,519.30 and 103,691.80

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Solution

The fourth proportional to 340,328.92, 510,519.30 and 103,691.80 is: 155,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,328.92 : 510,519.30 = 103,691.80 : x
  2. Step 2: Convert to fraction form
    340,328.92/510,519.30 = 103,691.80/x
  3. Step 3: Cross multiply
    340,328.92x = 510,519.30 × 103,691.80
  4. Step 4: Simplify right side
    340,328.92x = 52,936,665,151.74
  5. Step 5: Solve for x
    x = 52,936,665,151.74/340,328.92
  6. Step 6: Final answer
    x = 155,545.60

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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.