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Finding the Fourth Proportional to 217,170.62, 325,528.57 and 90,883.22

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Solution

The fourth proportional to 217,170.62, 325,528.57 and 90,883.22 is: 136,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,170.62 : 325,528.57 = 90,883.22 : x
  2. Step 2: Convert to fraction form
    217,170.62/325,528.57 = 90,883.22/x
  3. Step 3: Cross multiply
    217,170.62x = 325,528.57 × 90,883.22
  4. Step 4: Simplify right side
    217,170.62x = 29,585,083,129.56
  5. Step 5: Solve for x
    x = 29,585,083,129.56/217,170.62
  6. Step 6: Final answer
    x = 136,229.68

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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.