Home / 276,942.28-382,169.30-156,108.64

Finding the Fourth Proportional to 276,942.28, 382,169.30 and 156,108.64

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Solution

The fourth proportional to 276,942.28, 382,169.30 and 156,108.64 is: 215,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,942.28 : 382,169.30 = 156,108.64 : x
  2. Step 2: Convert to fraction form
    276,942.28/382,169.30 = 156,108.64/x
  3. Step 3: Cross multiply
    276,942.28x = 382,169.30 × 156,108.64
  4. Step 4: Simplify right side
    276,942.28x = 59,659,929,672.75
  5. Step 5: Solve for x
    x = 59,659,929,672.75/276,942.28
  6. Step 6: Final answer
    x = 215,423.70

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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.