Home / 221,554.40-332,440.04-137,292

Finding the Fourth Proportional to 221,554.40, 332,440.04 and 137,292

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Solution

The fourth proportional to 221,554.40, 332,440.04 and 137,292 is: 206,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,554.40 : 332,440.04 = 137,292 : x
  2. Step 2: Convert to fraction form
    221,554.40/332,440.04 = 137,292/x
  3. Step 3: Cross multiply
    221,554.40x = 332,440.04 × 137,292
  4. Step 4: Simplify right side
    221,554.40x = 45,641,357,971.68
  5. Step 5: Solve for x
    x = 45,641,357,971.68/221,554.40
  6. Step 6: Final answer
    x = 206,005.20

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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.