Home / 219,472.25-329,346.75-86,335.20

Finding the Fourth Proportional to 219,472.25, 329,346.75 and 86,335.20

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Solution

The fourth proportional to 219,472.25, 329,346.75 and 86,335.20 is: 129,557.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,472.25 : 329,346.75 = 86,335.20 : x
  2. Step 2: Convert to fraction form
    219,472.25/329,346.75 = 86,335.20/x
  3. Step 3: Cross multiply
    219,472.25x = 329,346.75 × 86,335.20
  4. Step 4: Simplify right side
    219,472.25x = 28,434,217,530.60
  5. Step 5: Solve for x
    x = 28,434,217,530.60/219,472.25
  6. Step 6: Final answer
    x = 129,557.24

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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.