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Finding the Fourth Proportional to 252,013.69, 347,778.88 and 138,836.44

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Solution

The fourth proportional to 252,013.69, 347,778.88 and 138,836.44 is: 191,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,013.69 : 347,778.88 = 138,836.44 : x
  2. Step 2: Convert to fraction form
    252,013.69/347,778.88 = 138,836.44/x
  3. Step 3: Cross multiply
    252,013.69x = 347,778.88 × 138,836.44
  4. Step 4: Simplify right side
    252,013.69x = 48,284,381,606.39
  5. Step 5: Solve for x
    x = 48,284,381,606.39/252,013.69
  6. Step 6: Final answer
    x = 191,594.28

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1.5x scale

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.