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Finding the Fourth Proportional to 251,480.60, 347,045.68 and 136,761.71

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Solution

The fourth proportional to 251,480.60, 347,045.68 and 136,761.71 is: 188,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,480.60 : 347,045.68 = 136,761.71 : x
  2. Step 2: Convert to fraction form
    251,480.60/347,045.68 = 136,761.71/x
  3. Step 3: Cross multiply
    251,480.60x = 347,045.68 × 136,761.71
  4. Step 4: Simplify right side
    251,480.60x = 47,462,558,909.68
  5. Step 5: Solve for x
    x = 47,462,558,909.68/251,480.60
  6. Step 6: Final answer
    x = 188,732.49

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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.