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Finding the Fourth Proportional to 217,063.16, 325,627.55 and 76,810.85

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Solution

The fourth proportional to 217,063.16, 325,627.55 and 76,810.85 is: 115,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,063.16 : 325,627.55 = 76,810.85 : x
  2. Step 2: Convert to fraction form
    217,063.16/325,627.55 = 76,810.85/x
  3. Step 3: Cross multiply
    217,063.16x = 325,627.55 × 76,810.85
  4. Step 4: Simplify right side
    217,063.16x = 25,011,726,886.73
  5. Step 5: Solve for x
    x = 25,011,726,886.73/217,063.16
  6. Step 6: Final answer
    x = 115,227.88

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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.