Home / 221,729.20-332,156.40-132,718.30

Finding the Fourth Proportional to 221,729.20, 332,156.40 and 132,718.30

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Solution

The fourth proportional to 221,729.20, 332,156.40 and 132,718.30 is: 198,815.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,729.20 : 332,156.40 = 132,718.30 : x
  2. Step 2: Convert to fraction form
    221,729.20/332,156.40 = 132,718.30/x
  3. Step 3: Cross multiply
    221,729.20x = 332,156.40 × 132,718.30
  4. Step 4: Simplify right side
    221,729.20x = 44,083,232,742.12
  5. Step 5: Solve for x
    x = 44,083,232,742.12/221,729.20
  6. Step 6: Final answer
    x = 198,815.64

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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.