Home / 219,390.10-329,119.94-84,449.46

Finding the Fourth Proportional to 219,390.10, 329,119.94 and 84,449.46

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Solution

The fourth proportional to 219,390.10, 329,119.94 and 84,449.46 is: 126,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,390.10 : 329,119.94 = 84,449.46 : x
  2. Step 2: Convert to fraction form
    219,390.10/329,119.94 = 84,449.46/x
  3. Step 3: Cross multiply
    219,390.10x = 329,119.94 × 84,449.46
  4. Step 4: Simplify right side
    219,390.10x = 27,794,001,208.23
  5. Step 5: Solve for x
    x = 27,794,001,208.23/219,390.10
  6. Step 6: Final answer
    x = 126,687.58

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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.