Home / 257,230.20-386,234.10-198,132.60

Finding the Fourth Proportional to 257,230.20, 386,234.10 and 198,132.60

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Solution

The fourth proportional to 257,230.20, 386,234.10 and 198,132.60 is: 297,498.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,230.20 : 386,234.10 = 198,132.60 : x
  2. Step 2: Convert to fraction form
    257,230.20/386,234.10 = 198,132.60/x
  3. Step 3: Cross multiply
    257,230.20x = 386,234.10 × 198,132.60
  4. Step 4: Simplify right side
    257,230.20x = 76,525,566,441.66
  5. Step 5: Solve for x
    x = 76,525,566,441.66/257,230.20
  6. Step 6: Final answer
    x = 297,498.37

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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.