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Finding the Fourth Proportional to 221,666.40, 332,499.60 and 132,874.20

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Solution

The fourth proportional to 221,666.40, 332,499.60 and 132,874.20 is: 199,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,666.40 : 332,499.60 = 132,874.20 : x
  2. Step 2: Convert to fraction form
    221,666.40/332,499.60 = 132,874.20/x
  3. Step 3: Cross multiply
    221,666.40x = 332,499.60 × 132,874.20
  4. Step 4: Simplify right side
    221,666.40x = 44,180,618,350.32
  5. Step 5: Solve for x
    x = 44,180,618,350.32/221,666.40
  6. Step 6: Final answer
    x = 199,311.30

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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.