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Finding the Fourth Proportional to 272,485.80, 408,765.15 and 95,047.20

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Solution

The fourth proportional to 272,485.80, 408,765.15 and 95,047.20 is: 142,583.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,485.80 : 408,765.15 = 95,047.20 : x
  2. Step 2: Convert to fraction form
    272,485.80/408,765.15 = 95,047.20/x
  3. Step 3: Cross multiply
    272,485.80x = 408,765.15 × 95,047.20
  4. Step 4: Simplify right side
    272,485.80x = 38,851,982,965.08
  5. Step 5: Solve for x
    x = 38,851,982,965.08/272,485.80
  6. Step 6: Final answer
    x = 142,583.51

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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.