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Finding the Fourth Proportional to 266,480.28, 399,522.78 and 161,274.24

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Solution

The fourth proportional to 266,480.28, 399,522.78 and 161,274.24 is: 241,791.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,480.28 : 399,522.78 = 161,274.24 : x
  2. Step 2: Convert to fraction form
    266,480.28/399,522.78 = 161,274.24/x
  3. Step 3: Cross multiply
    266,480.28x = 399,522.78 × 161,274.24
  4. Step 4: Simplify right side
    266,480.28x = 64,432,732,707.19
  5. Step 5: Solve for x
    x = 64,432,732,707.19/266,480.28
  6. Step 6: Final answer
    x = 241,791.75

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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.