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Finding the Fourth Proportional to 274,728, 378,752.43 and 234,869.92

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Solution

The fourth proportional to 274,728, 378,752.43 and 234,869.92 is: 323,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,728 : 378,752.43 = 234,869.92 : x
  2. Step 2: Convert to fraction form
    274,728/378,752.43 = 234,869.92/x
  3. Step 3: Cross multiply
    274,728x = 378,752.43 × 234,869.92
  4. Step 4: Simplify right side
    274,728x = 88,957,552,933.91
  5. Step 5: Solve for x
    x = 88,957,552,933.91/274,728
  6. Step 6: Final answer
    x = 323,802.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.