Home / 329,221.96-493,734.90-139,680.04

Finding the Fourth Proportional to 329,221.96, 493,734.90 and 139,680.04

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Solution

The fourth proportional to 329,221.96, 493,734.90 and 139,680.04 is: 209,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,221.96 : 493,734.90 = 139,680.04 : x
  2. Step 2: Convert to fraction form
    329,221.96/493,734.90 = 139,680.04/x
  3. Step 3: Cross multiply
    329,221.96x = 493,734.90 × 139,680.04
  4. Step 4: Simplify right side
    329,221.96x = 68,964,910,581.40
  5. Step 5: Solve for x
    x = 68,964,910,581.40/329,221.96
  6. Step 6: Final answer
    x = 209,478.46

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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.