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Finding the Fourth Proportional to 276,753.77, 415,288.51 and 108,287.81

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Solution

The fourth proportional to 276,753.77, 415,288.51 and 108,287.81 is: 162,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,753.77 : 415,288.51 = 108,287.81 : x
  2. Step 2: Convert to fraction form
    276,753.77/415,288.51 = 108,287.81/x
  3. Step 3: Cross multiply
    276,753.77x = 415,288.51 × 108,287.81
  4. Step 4: Simplify right side
    276,753.77x = 44,970,680,918.90
  5. Step 5: Solve for x
    x = 44,970,680,918.90/276,753.77
  6. Step 6: Final answer
    x = 162,493.47

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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.