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Finding the Fourth Proportional to 281,862.40, 422,204.80 and 132,230.40

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Solution

The fourth proportional to 281,862.40, 422,204.80 and 132,230.40 is: 198,069.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,862.40 : 422,204.80 = 132,230.40 : x
  2. Step 2: Convert to fraction form
    281,862.40/422,204.80 = 132,230.40/x
  3. Step 3: Cross multiply
    281,862.40x = 422,204.80 × 132,230.40
  4. Step 4: Simplify right side
    281,862.40x = 55,828,309,585.92
  5. Step 5: Solve for x
    x = 55,828,309,585.92/281,862.40
  6. Step 6: Final answer
    x = 198,069.38

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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.