Home / 221,569.90-332,354.85-115,281.70

Finding the Fourth Proportional to 221,569.90, 332,354.85 and 115,281.70

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Solution

The fourth proportional to 221,569.90, 332,354.85 and 115,281.70 is: 172,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,569.90 : 332,354.85 = 115,281.70 : x
  2. Step 2: Convert to fraction form
    221,569.90/332,354.85 = 115,281.70/x
  3. Step 3: Cross multiply
    221,569.90x = 332,354.85 × 115,281.70
  4. Step 4: Simplify right side
    221,569.90x = 38,314,432,111.25
  5. Step 5: Solve for x
    x = 38,314,432,111.25/221,569.90
  6. Step 6: Final answer
    x = 172,922.55

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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.