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Finding the Fourth Proportional to 270,149.28, 372,795.12 and 156,963.12

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Solution

The fourth proportional to 270,149.28, 372,795.12 and 156,963.12 is: 216,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,149.28 : 372,795.12 = 156,963.12 : x
  2. Step 2: Convert to fraction form
    270,149.28/372,795.12 = 156,963.12/x
  3. Step 3: Cross multiply
    270,149.28x = 372,795.12 × 156,963.12
  4. Step 4: Simplify right side
    270,149.28x = 58,515,085,155.97
  5. Step 5: Solve for x
    x = 58,515,085,155.97/270,149.28
  6. Step 6: Final answer
    x = 216,602.78

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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.