Home / 218,987.76-329,097.24-130,257.36

Finding the Fourth Proportional to 218,987.76, 329,097.24 and 130,257.36

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Solution

The fourth proportional to 218,987.76, 329,097.24 and 130,257.36 is: 195,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,987.76 : 329,097.24 = 130,257.36 : x
  2. Step 2: Convert to fraction form
    218,987.76/329,097.24 = 130,257.36/x
  3. Step 3: Cross multiply
    218,987.76x = 329,097.24 × 130,257.36
  4. Step 4: Simplify right side
    218,987.76x = 42,867,337,665.69
  5. Step 5: Solve for x
    x = 42,867,337,665.69/218,987.76
  6. Step 6: Final answer
    x = 195,752.21

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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.