Home / 398,493.12-597,738.60-132,273.72

Finding the Fourth Proportional to 398,493.12, 597,738.60 and 132,273.72

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Solution

The fourth proportional to 398,493.12, 597,738.60 and 132,273.72 is: 198,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,493.12 : 597,738.60 = 132,273.72 : x
  2. Step 2: Convert to fraction form
    398,493.12/597,738.60 = 132,273.72/x
  3. Step 3: Cross multiply
    398,493.12x = 597,738.60 × 132,273.72
  4. Step 4: Simplify right side
    398,493.12x = 79,065,108,209.59
  5. Step 5: Solve for x
    x = 79,065,108,209.59/398,493.12
  6. Step 6: Final answer
    x = 198,410.22

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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.