Home / 276,347.28-381,359.22-157,115.28

Finding the Fourth Proportional to 276,347.28, 381,359.22 and 157,115.28

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Solution

The fourth proportional to 276,347.28, 381,359.22 and 157,115.28 is: 216,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,347.28 : 381,359.22 = 157,115.28 : x
  2. Step 2: Convert to fraction form
    276,347.28/381,359.22 = 157,115.28/x
  3. Step 3: Cross multiply
    276,347.28x = 381,359.22 × 157,115.28
  4. Step 4: Simplify right side
    276,347.28x = 59,917,360,630.88
  5. Step 5: Solve for x
    x = 59,917,360,630.88/276,347.28
  6. Step 6: Final answer
    x = 216,819.07

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1.5x scale

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.