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Finding the Fourth Proportional to 381,377.92, 526,243.08 and 228,380.28

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Solution

The fourth proportional to 381,377.92, 526,243.08 and 228,380.28 is: 315,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,377.92 : 526,243.08 = 228,380.28 : x
  2. Step 2: Convert to fraction form
    381,377.92/526,243.08 = 228,380.28/x
  3. Step 3: Cross multiply
    381,377.92x = 526,243.08 × 228,380.28
  4. Step 4: Simplify right side
    381,377.92x = 120,183,541,958.46
  5. Step 5: Solve for x
    x = 120,183,541,958.46/381,377.92
  6. Step 6: Final answer
    x = 315,129.79

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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.