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Finding the Fourth Proportional to 266,398.53, 399,641.93 and 88,959.93

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Solution

The fourth proportional to 266,398.53, 399,641.93 and 88,959.93 is: 133,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,398.53 : 399,641.93 = 88,959.93 : x
  2. Step 2: Convert to fraction form
    266,398.53/399,641.93 = 88,959.93/x
  3. Step 3: Cross multiply
    266,398.53x = 399,641.93 × 88,959.93
  4. Step 4: Simplify right side
    266,398.53x = 35,552,118,117.86
  5. Step 5: Solve for x
    x = 35,552,118,117.86/266,398.53
  6. Step 6: Final answer
    x = 133,454.63

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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.