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Finding the Fourth Proportional to 221,482.40, 332,223.60 and 132,690.20

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Solution

The fourth proportional to 221,482.40, 332,223.60 and 132,690.20 is: 199,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,482.40 : 332,223.60 = 132,690.20 : x
  2. Step 2: Convert to fraction form
    221,482.40/332,223.60 = 132,690.20/x
  3. Step 3: Cross multiply
    221,482.40x = 332,223.60 × 132,690.20
  4. Step 4: Simplify right side
    221,482.40x = 44,082,815,928.72
  5. Step 5: Solve for x
    x = 44,082,815,928.72/221,482.40
  6. Step 6: Final answer
    x = 199,035.30

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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.