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Finding the Fourth Proportional to 266,066.70, 399,294.45 and 187,334.70

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Solution

The fourth proportional to 266,066.70, 399,294.45 and 187,334.70 is: 281,138.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,066.70 : 399,294.45 = 187,334.70 : x
  2. Step 2: Convert to fraction form
    266,066.70/399,294.45 = 187,334.70/x
  3. Step 3: Cross multiply
    266,066.70x = 399,294.45 × 187,334.70
  4. Step 4: Simplify right side
    266,066.70x = 74,801,706,002.42
  5. Step 5: Solve for x
    x = 74,801,706,002.42/266,066.70
  6. Step 6: Final answer
    x = 281,138.92

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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.