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Finding the Fourth Proportional to 266,955.32, 400,438 and 124,761.58

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Solution

The fourth proportional to 266,955.32, 400,438 and 124,761.58 is: 187,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,955.32 : 400,438 = 124,761.58 : x
  2. Step 2: Convert to fraction form
    266,955.32/400,438 = 124,761.58/x
  3. Step 3: Cross multiply
    266,955.32x = 400,438 × 124,761.58
  4. Step 4: Simplify right side
    266,955.32x = 49,959,277,572.04
  5. Step 5: Solve for x
    x = 49,959,277,572.04/266,955.32
  6. Step 6: Final answer
    x = 187,144.72

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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.