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Finding the Fourth Proportional to 435,915.20, 653,613.60 and 225,963.20

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Solution

The fourth proportional to 435,915.20, 653,613.60 and 225,963.20 is: 338,810.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,915.20 : 653,613.60 = 225,963.20 : x
  2. Step 2: Convert to fraction form
    435,915.20/653,613.60 = 225,963.20/x
  3. Step 3: Cross multiply
    435,915.20x = 653,613.60 × 225,963.20
  4. Step 4: Simplify right side
    435,915.20x = 147,692,620,619.52
  5. Step 5: Solve for x
    x = 147,692,620,619.52/435,915.20
  6. Step 6: Final answer
    x = 338,810.44

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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.