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Finding the Fourth Proportional to 276,711.20, 415,066.80 and 227,503.70

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Solution

The fourth proportional to 276,711.20, 415,066.80 and 227,503.70 is: 341,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,711.20 : 415,066.80 = 227,503.70 : x
  2. Step 2: Convert to fraction form
    276,711.20/415,066.80 = 227,503.70/x
  3. Step 3: Cross multiply
    276,711.20x = 415,066.80 × 227,503.70
  4. Step 4: Simplify right side
    276,711.20x = 94,429,232,747.16
  5. Step 5: Solve for x
    x = 94,429,232,747.16/276,711.20
  6. Step 6: Final answer
    x = 341,255.55

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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.