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Finding the Fourth Proportional to 253,149.44, 379,781.76 and 134,758.40

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Solution

The fourth proportional to 253,149.44, 379,781.76 and 134,758.40 is: 202,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,149.44 : 379,781.76 = 134,758.40 : x
  2. Step 2: Convert to fraction form
    253,149.44/379,781.76 = 134,758.40/x
  3. Step 3: Cross multiply
    253,149.44x = 379,781.76 × 134,758.40
  4. Step 4: Simplify right side
    253,149.44x = 51,178,782,326.78
  5. Step 5: Solve for x
    x = 51,178,782,326.78/253,149.44
  6. Step 6: Final answer
    x = 202,168.26

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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.