Home / 398,142.20-597,443.70-148,849.40

Finding the Fourth Proportional to 398,142.20, 597,443.70 and 148,849.40

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Solution

The fourth proportional to 398,142.20, 597,443.70 and 148,849.40 is: 223,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,142.20 : 597,443.70 = 148,849.40 : x
  2. Step 2: Convert to fraction form
    398,142.20/597,443.70 = 148,849.40/x
  3. Step 3: Cross multiply
    398,142.20x = 597,443.70 × 148,849.40
  4. Step 4: Simplify right side
    398,142.20x = 88,929,136,278.78
  5. Step 5: Solve for x
    x = 88,929,136,278.78/398,142.20
  6. Step 6: Final answer
    x = 223,360.24

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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.