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Finding the Fourth Proportional to 381,537.88, 526,546.92 and 220,399.72

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Solution

The fourth proportional to 381,537.88, 526,546.92 and 220,399.72 is: 304,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,537.88 : 526,546.92 = 220,399.72 : x
  2. Step 2: Convert to fraction form
    381,537.88/526,546.92 = 220,399.72/x
  3. Step 3: Cross multiply
    381,537.88x = 526,546.92 × 220,399.72
  4. Step 4: Simplify right side
    381,537.88x = 116,050,793,734.86
  5. Step 5: Solve for x
    x = 116,050,793,734.86/381,537.88
  6. Step 6: Final answer
    x = 304,165.85

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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.