Home / 221,013.45-331,517.73-132,291.72

Finding the Fourth Proportional to 221,013.45, 331,517.73 and 132,291.72

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Solution

The fourth proportional to 221,013.45, 331,517.73 and 132,291.72 is: 198,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,013.45 : 331,517.73 = 132,291.72 : x
  2. Step 2: Convert to fraction form
    221,013.45/331,517.73 = 132,291.72/x
  3. Step 3: Cross multiply
    221,013.45x = 331,517.73 × 132,291.72
  4. Step 4: Simplify right side
    221,013.45x = 43,857,050,712.20
  5. Step 5: Solve for x
    x = 43,857,050,712.20/221,013.45
  6. Step 6: Final answer
    x = 198,436.12

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1.5x scale

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.