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Finding the Fourth Proportional to 276,760.80, 415,019.70 and 126,951.30

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Solution

The fourth proportional to 276,760.80, 415,019.70 and 126,951.30 is: 190,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,760.80 : 415,019.70 = 126,951.30 : x
  2. Step 2: Convert to fraction form
    276,760.80/415,019.70 = 126,951.30/x
  3. Step 3: Cross multiply
    276,760.80x = 415,019.70 × 126,951.30
  4. Step 4: Simplify right side
    276,760.80x = 52,687,290,440.61
  5. Step 5: Solve for x
    x = 52,687,290,440.61/276,760.80
  6. Step 6: Final answer
    x = 190,371.22

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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.