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Finding the Fourth Proportional to 266,464.68, 399,759.93 and 86,549.55

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Solution

The fourth proportional to 266,464.68, 399,759.93 and 86,549.55 is: 129,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,464.68 : 399,759.93 = 86,549.55 : x
  2. Step 2: Convert to fraction form
    266,464.68/399,759.93 = 86,549.55/x
  3. Step 3: Cross multiply
    266,464.68x = 399,759.93 × 86,549.55
  4. Step 4: Simplify right side
    266,464.68x = 34,599,042,049.53
  5. Step 5: Solve for x
    x = 34,599,042,049.53/266,464.68
  6. Step 6: Final answer
    x = 129,844.76

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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.