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Finding the Fourth Proportional to 354,805.44, 532,334.08 and 221,531.20

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Solution

The fourth proportional to 354,805.44, 532,334.08 and 221,531.20 is: 332,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,805.44 : 532,334.08 = 221,531.20 : x
  2. Step 2: Convert to fraction form
    354,805.44/532,334.08 = 221,531.20/x
  3. Step 3: Cross multiply
    354,805.44x = 532,334.08 × 221,531.20
  4. Step 4: Simplify right side
    354,805.44x = 117,928,607,543.30
  5. Step 5: Solve for x
    x = 117,928,607,543.30/354,805.44
  6. Step 6: Final answer
    x = 332,375.42

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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.