Home / 326,250.10-489,375.15-115,909.30

Finding the Fourth Proportional to 326,250.10, 489,375.15 and 115,909.30

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Solution

The fourth proportional to 326,250.10, 489,375.15 and 115,909.30 is: 173,863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,250.10 : 489,375.15 = 115,909.30 : x
  2. Step 2: Convert to fraction form
    326,250.10/489,375.15 = 115,909.30/x
  3. Step 3: Cross multiply
    326,250.10x = 489,375.15 × 115,909.30
  4. Step 4: Simplify right side
    326,250.10x = 56,723,131,073.90
  5. Step 5: Solve for x
    x = 56,723,131,073.90/326,250.10
  6. Step 6: Final answer
    x = 173,863.95

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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.