Home / 327,915.55-491,886.28-91,278.91

Finding the Fourth Proportional to 327,915.55, 491,886.28 and 91,278.91

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Solution

The fourth proportional to 327,915.55, 491,886.28 and 91,278.91 is: 136,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,915.55 : 491,886.28 = 91,278.91 : x
  2. Step 2: Convert to fraction form
    327,915.55/491,886.28 = 91,278.91/x
  3. Step 3: Cross multiply
    327,915.55x = 491,886.28 × 91,278.91
  4. Step 4: Simplify right side
    327,915.55x = 44,898,841,022.92
  5. Step 5: Solve for x
    x = 44,898,841,022.92/327,915.55
  6. Step 6: Final answer
    x = 136,921.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.