Home / 221,556.90-332,443.78-137,294.52

Finding the Fourth Proportional to 221,556.90, 332,443.78 and 137,294.52

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Solution

The fourth proportional to 221,556.90, 332,443.78 and 137,294.52 is: 206,008.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,556.90 : 332,443.78 = 137,294.52 : x
  2. Step 2: Convert to fraction form
    221,556.90/332,443.78 = 137,294.52/x
  3. Step 3: Cross multiply
    221,556.90x = 332,443.78 × 137,294.52
  4. Step 4: Simplify right side
    221,556.90x = 45,642,709,202.09
  5. Step 5: Solve for x
    x = 45,642,709,202.09/221,556.90
  6. Step 6: Final answer
    x = 206,008.97

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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.