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Finding the Fourth Proportional to 274,562.20, 378,700.53 and 251,974.13

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Solution

The fourth proportional to 274,562.20, 378,700.53 and 251,974.13 is: 347,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,562.20 : 378,700.53 = 251,974.13 : x
  2. Step 2: Convert to fraction form
    274,562.20/378,700.53 = 251,974.13/x
  3. Step 3: Cross multiply
    274,562.20x = 378,700.53 × 251,974.13
  4. Step 4: Simplify right side
    274,562.20x = 95,422,736,577.29
  5. Step 5: Solve for x
    x = 95,422,736,577.29/274,562.20
  6. Step 6: Final answer
    x = 347,545.07

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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.