Home / 220,948.16-331,434.40-71,177.60

Finding the Fourth Proportional to 220,948.16, 331,434.40 and 71,177.60

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Solution

The fourth proportional to 220,948.16, 331,434.40 and 71,177.60 is: 106,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,948.16 : 331,434.40 = 71,177.60 : x
  2. Step 2: Convert to fraction form
    220,948.16/331,434.40 = 71,177.60/x
  3. Step 3: Cross multiply
    220,948.16x = 331,434.40 × 71,177.60
  4. Step 4: Simplify right side
    220,948.16x = 23,590,705,149.44
  5. Step 5: Solve for x
    x = 23,590,705,149.44/220,948.16
  6. Step 6: Final answer
    x = 106,770.32

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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.