Home / 221,872.38-306,149.67-126,366.90

Finding the Fourth Proportional to 221,872.38, 306,149.67 and 126,366.90

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Solution

The fourth proportional to 221,872.38, 306,149.67 and 126,366.90 is: 174,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,872.38 : 306,149.67 = 126,366.90 : x
  2. Step 2: Convert to fraction form
    221,872.38/306,149.67 = 126,366.90/x
  3. Step 3: Cross multiply
    221,872.38x = 306,149.67 × 126,366.90
  4. Step 4: Simplify right side
    221,872.38x = 38,687,184,733.92
  5. Step 5: Solve for x
    x = 38,687,184,733.92/221,872.38
  6. Step 6: Final answer
    x = 174,366.84

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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.