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Finding the Fourth Proportional to 252,881.43, 348,983.42 and 139,711.47

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Solution

The fourth proportional to 252,881.43, 348,983.42 and 139,711.47 is: 192,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,881.43 : 348,983.42 = 139,711.47 : x
  2. Step 2: Convert to fraction form
    252,881.43/348,983.42 = 139,711.47/x
  3. Step 3: Cross multiply
    252,881.43x = 348,983.42 × 139,711.47
  4. Step 4: Simplify right side
    252,881.43x = 48,756,985,915.27
  5. Step 5: Solve for x
    x = 48,756,985,915.27/252,881.43
  6. Step 6: Final answer
    x = 192,805.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.