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Finding the Fourth Proportional to 274,605.87, 378,760.68 and 252,017.76

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Solution

The fourth proportional to 274,605.87, 378,760.68 and 252,017.76 is: 347,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,605.87 : 378,760.68 = 252,017.76 : x
  2. Step 2: Convert to fraction form
    274,605.87/378,760.68 = 252,017.76/x
  3. Step 3: Cross multiply
    274,605.87x = 378,760.68 × 252,017.76
  4. Step 4: Simplify right side
    274,605.87x = 95,454,418,149.68
  5. Step 5: Solve for x
    x = 95,454,418,149.68/274,605.87
  6. Step 6: Final answer
    x = 347,605.16

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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.