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Finding the Fourth Proportional to 266,171.38, 398,924.79 and 133,089.70

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Solution

The fourth proportional to 266,171.38, 398,924.79 and 133,089.70 is: 199,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,171.38 : 398,924.79 = 133,089.70 : x
  2. Step 2: Convert to fraction form
    266,171.38/398,924.79 = 133,089.70/x
  3. Step 3: Cross multiply
    266,171.38x = 398,924.79 × 133,089.70
  4. Step 4: Simplify right side
    266,171.38x = 53,092,780,623.66
  5. Step 5: Solve for x
    x = 53,092,780,623.66/266,171.38
  6. Step 6: Final answer
    x = 199,468.40

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1.5x scale

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.