Home / 218,758.23-329,319.09-196,761.87

Finding the Fourth Proportional to 218,758.23, 329,319.09 and 196,761.87

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Solution

The fourth proportional to 218,758.23, 329,319.09 and 196,761.87 is: 296,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,758.23 : 329,319.09 = 196,761.87 : x
  2. Step 2: Convert to fraction form
    218,758.23/329,319.09 = 196,761.87/x
  3. Step 3: Cross multiply
    218,758.23x = 329,319.09 × 196,761.87
  4. Step 4: Simplify right side
    218,758.23x = 64,797,439,975.10
  5. Step 5: Solve for x
    x = 64,797,439,975.10/218,758.23
  6. Step 6: Final answer
    x = 296,205.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.