Home / 398,278.20-597,417.30-148,927.80

Finding the Fourth Proportional to 398,278.20, 597,417.30 and 148,927.80

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Solution

The fourth proportional to 398,278.20, 597,417.30 and 148,927.80 is: 223,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,278.20 : 597,417.30 = 148,927.80 : x
  2. Step 2: Convert to fraction form
    398,278.20/597,417.30 = 148,927.80/x
  3. Step 3: Cross multiply
    398,278.20x = 597,417.30 × 148,927.80
  4. Step 4: Simplify right side
    398,278.20x = 88,972,044,170.94
  5. Step 5: Solve for x
    x = 88,972,044,170.94/398,278.20
  6. Step 6: Final answer
    x = 223,391.70

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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.