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Finding the Fourth Proportional to 610,126.43, 915,236.42 and 205,320.62

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Solution

The fourth proportional to 610,126.43, 915,236.42 and 205,320.62 is: 307,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,126.43 : 915,236.42 = 205,320.62 : x
  2. Step 2: Convert to fraction form
    610,126.43/915,236.42 = 205,320.62/x
  3. Step 3: Cross multiply
    610,126.43x = 915,236.42 × 205,320.62
  4. Step 4: Simplify right side
    610,126.43x = 187,916,910,462.47
  5. Step 5: Solve for x
    x = 187,916,910,462.47/610,126.43
  6. Step 6: Final answer
    x = 307,996.68

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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.