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Finding the Fourth Proportional to 266,924.81, 400,304.82 and 77,399.15

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Solution

The fourth proportional to 266,924.81, 400,304.82 and 77,399.15 is: 116,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,924.81 : 400,304.82 = 77,399.15 : x
  2. Step 2: Convert to fraction form
    266,924.81/400,304.82 = 77,399.15/x
  3. Step 3: Cross multiply
    266,924.81x = 400,304.82 × 77,399.15
  4. Step 4: Simplify right side
    266,924.81x = 30,983,250,807.38
  5. Step 5: Solve for x
    x = 30,983,250,807.38/266,924.81
  6. Step 6: Final answer
    x = 116,074.83

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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.