Home / 276,721.60-415,082.40-252,227.20

Finding the Fourth Proportional to 276,721.60, 415,082.40 and 252,227.20

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Solution

The fourth proportional to 276,721.60, 415,082.40 and 252,227.20 is: 378,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,721.60 : 415,082.40 = 252,227.20 : x
  2. Step 2: Convert to fraction form
    276,721.60/415,082.40 = 252,227.20/x
  3. Step 3: Cross multiply
    276,721.60x = 415,082.40 × 252,227.20
  4. Step 4: Simplify right side
    276,721.60x = 104,695,071,521.28
  5. Step 5: Solve for x
    x = 104,695,071,521.28/276,721.60
  6. Step 6: Final answer
    x = 378,340.80

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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.