Home / 276,965.28-382,182.84-156,103.56

Finding the Fourth Proportional to 276,965.28, 382,182.84 and 156,103.56

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Solution

The fourth proportional to 276,965.28, 382,182.84 and 156,103.56 is: 215,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,965.28 : 382,182.84 = 156,103.56 : x
  2. Step 2: Convert to fraction form
    276,965.28/382,182.84 = 156,103.56/x
  3. Step 3: Cross multiply
    276,965.28x = 382,182.84 × 156,103.56
  4. Step 4: Simplify right side
    276,965.28x = 59,660,101,894.91
  5. Step 5: Solve for x
    x = 59,660,101,894.91/276,965.28
  6. Step 6: Final answer
    x = 215,406.43

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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.