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Finding the Fourth Proportional to 266,995.71, 400,260.96 and 109,123.47

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Solution

The fourth proportional to 266,995.71, 400,260.96 and 109,123.47 is: 163,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,995.71 : 400,260.96 = 109,123.47 : x
  2. Step 2: Convert to fraction form
    266,995.71/400,260.96 = 109,123.47/x
  3. Step 3: Cross multiply
    266,995.71x = 400,260.96 × 109,123.47
  4. Step 4: Simplify right side
    266,995.71x = 43,677,864,860.73
  5. Step 5: Solve for x
    x = 43,677,864,860.73/266,995.71
  6. Step 6: Final answer
    x = 163,590.14

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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.