Home / 220,963.40-331,445.10-80,822.60

Finding the Fourth Proportional to 220,963.40, 331,445.10 and 80,822.60

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Solution

The fourth proportional to 220,963.40, 331,445.10 and 80,822.60 is: 121,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,963.40 : 331,445.10 = 80,822.60 : x
  2. Step 2: Convert to fraction form
    220,963.40/331,445.10 = 80,822.60/x
  3. Step 3: Cross multiply
    220,963.40x = 331,445.10 × 80,822.60
  4. Step 4: Simplify right side
    220,963.40x = 26,788,254,739.26
  5. Step 5: Solve for x
    x = 26,788,254,739.26/220,963.40
  6. Step 6: Final answer
    x = 121,233.90

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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.