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Finding the Fourth Proportional to 266,170.38, 398,923.29 and 133,088.70

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Solution

The fourth proportional to 266,170.38, 398,923.29 and 133,088.70 is: 199,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,170.38 : 398,923.29 = 133,088.70 : x
  2. Step 2: Convert to fraction form
    266,170.38/398,923.29 = 133,088.70/x
  3. Step 3: Cross multiply
    266,170.38x = 398,923.29 × 133,088.70
  4. Step 4: Simplify right side
    266,170.38x = 53,092,182,065.82
  5. Step 5: Solve for x
    x = 53,092,182,065.82/266,170.38
  6. Step 6: Final answer
    x = 199,466.91

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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.