Home / 220,949.40-331,479.30-71,203.80

Finding the Fourth Proportional to 220,949.40, 331,479.30 and 71,203.80

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Solution

The fourth proportional to 220,949.40, 331,479.30 and 71,203.80 is: 106,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,949.40 : 331,479.30 = 71,203.80 : x
  2. Step 2: Convert to fraction form
    220,949.40/331,479.30 = 71,203.80/x
  3. Step 3: Cross multiply
    220,949.40x = 331,479.30 × 71,203.80
  4. Step 4: Simplify right side
    220,949.40x = 23,602,585,781.34
  5. Step 5: Solve for x
    x = 23,602,585,781.34/220,949.40
  6. Step 6: Final answer
    x = 106,823.49

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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.