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Finding the Fourth Proportional to 252,103.55, 347,901.23 and 138,926.39

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Solution

The fourth proportional to 252,103.55, 347,901.23 and 138,926.39 is: 191,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,103.55 : 347,901.23 = 138,926.39 : x
  2. Step 2: Convert to fraction form
    252,103.55/347,901.23 = 138,926.39/x
  3. Step 3: Cross multiply
    252,103.55x = 347,901.23 × 138,926.39
  4. Step 4: Simplify right side
    252,103.55x = 48,332,660,220.95
  5. Step 5: Solve for x
    x = 48,332,660,220.95/252,103.55
  6. Step 6: Final answer
    x = 191,717.50

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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.