Home / 219,642.60-329,828.28-137,061.48

Finding the Fourth Proportional to 219,642.60, 329,828.28 and 137,061.48

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Solution

The fourth proportional to 219,642.60, 329,828.28 and 137,061.48 is: 205,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,642.60 : 329,828.28 = 137,061.48 : x
  2. Step 2: Convert to fraction form
    219,642.60/329,828.28 = 137,061.48/x
  3. Step 3: Cross multiply
    219,642.60x = 329,828.28 × 137,061.48
  4. Step 4: Simplify right side
    219,642.60x = 45,206,752,202.65
  5. Step 5: Solve for x
    x = 45,206,752,202.65/219,642.60
  6. Step 6: Final answer
    x = 205,819.60

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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.