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Finding the Fourth Proportional to 327,573.36, 491,359.88 and 90,915.97

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Solution

The fourth proportional to 327,573.36, 491,359.88 and 90,915.97 is: 136,373.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,573.36 : 491,359.88 = 90,915.97 : x
  2. Step 2: Convert to fraction form
    327,573.36/491,359.88 = 90,915.97/x
  3. Step 3: Cross multiply
    327,573.36x = 491,359.88 × 90,915.97
  4. Step 4: Simplify right side
    327,573.36x = 44,672,457,652.48
  5. Step 5: Solve for x
    x = 44,672,457,652.48/327,573.36
  6. Step 6: Final answer
    x = 136,373.91

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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.