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Finding the Fourth Proportional to 221,443.40, 332,067.90 and 88,279.40

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Solution

The fourth proportional to 221,443.40, 332,067.90 and 88,279.40 is: 132,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,443.40 : 332,067.90 = 88,279.40 : x
  2. Step 2: Convert to fraction form
    221,443.40/332,067.90 = 88,279.40/x
  3. Step 3: Cross multiply
    221,443.40x = 332,067.90 × 88,279.40
  4. Step 4: Simplify right side
    221,443.40x = 29,314,754,971.26
  5. Step 5: Solve for x
    x = 29,314,754,971.26/221,443.40
  6. Step 6: Final answer
    x = 132,380.35

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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.