Home / 327,276.72-490,915.08-90,619.29

Finding the Fourth Proportional to 327,276.72, 490,915.08 and 90,619.29

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Solution

The fourth proportional to 327,276.72, 490,915.08 and 90,619.29 is: 135,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,276.72 : 490,915.08 = 90,619.29 : x
  2. Step 2: Convert to fraction form
    327,276.72/490,915.08 = 90,619.29/x
  3. Step 3: Cross multiply
    327,276.72x = 490,915.08 × 90,619.29
  4. Step 4: Simplify right side
    327,276.72x = 44,486,375,999.89
  5. Step 5: Solve for x
    x = 44,486,375,999.89/327,276.72
  6. Step 6: Final answer
    x = 135,928.94

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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.