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Finding the Fourth Proportional to 275,167.68, 379,735.56 and 160,443.20

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Solution

The fourth proportional to 275,167.68, 379,735.56 and 160,443.20 is: 221,414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,167.68 : 379,735.56 = 160,443.20 : x
  2. Step 2: Convert to fraction form
    275,167.68/379,735.56 = 160,443.20/x
  3. Step 3: Cross multiply
    275,167.68x = 379,735.56 × 160,443.20
  4. Step 4: Simplify right side
    275,167.68x = 60,925,988,400.19
  5. Step 5: Solve for x
    x = 60,925,988,400.19/275,167.68
  6. Step 6: Final answer
    x = 221,414.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.