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Finding the Fourth Proportional to 381,531.98, 526,655.49 and 327,600.38

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Solution

The fourth proportional to 381,531.98, 526,655.49 and 327,600.38 is: 452,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,531.98 : 526,655.49 = 327,600.38 : x
  2. Step 2: Convert to fraction form
    381,531.98/526,655.49 = 327,600.38/x
  3. Step 3: Cross multiply
    381,531.98x = 526,655.49 × 327,600.38
  4. Step 4: Simplify right side
    381,531.98x = 172,532,538,653.09
  5. Step 5: Solve for x
    x = 172,532,538,653.09/381,531.98
  6. Step 6: Final answer
    x = 452,209.90

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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.