Home / 252,213.78-378,432.72-132,241.98

Finding the Fourth Proportional to 252,213.78, 378,432.72 and 132,241.98

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Solution

The fourth proportional to 252,213.78, 378,432.72 and 132,241.98 is: 198,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,213.78 : 378,432.72 = 132,241.98 : x
  2. Step 2: Convert to fraction form
    252,213.78/378,432.72 = 132,241.98/x
  3. Step 3: Cross multiply
    252,213.78x = 378,432.72 × 132,241.98
  4. Step 4: Simplify right side
    252,213.78x = 50,044,692,189.59
  5. Step 5: Solve for x
    x = 50,044,692,189.59/252,213.78
  6. Step 6: Final answer
    x = 198,421.72

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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.