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Finding the Fourth Proportional to 381,701.72, 526,772.22 and 220,586.20

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Solution

The fourth proportional to 381,701.72, 526,772.22 and 220,586.20 is: 304,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,701.72 : 526,772.22 = 220,586.20 : x
  2. Step 2: Convert to fraction form
    381,701.72/526,772.22 = 220,586.20/x
  3. Step 3: Cross multiply
    381,701.72x = 526,772.22 × 220,586.20
  4. Step 4: Simplify right side
    381,701.72x = 116,198,682,275.36
  5. Step 5: Solve for x
    x = 116,198,682,275.36/381,701.72
  6. Step 6: Final answer
    x = 304,422.74

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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.