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Finding the Fourth Proportional to 230,604.40, 345,971.40 and 112,279.60

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Solution

The fourth proportional to 230,604.40, 345,971.40 and 112,279.60 is: 168,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,604.40 : 345,971.40 = 112,279.60 : x
  2. Step 2: Convert to fraction form
    230,604.40/345,971.40 = 112,279.60/x
  3. Step 3: Cross multiply
    230,604.40x = 345,971.40 × 112,279.60
  4. Step 4: Simplify right side
    230,604.40x = 38,845,530,403.44
  5. Step 5: Solve for x
    x = 38,845,530,403.44/230,604.40
  6. Step 6: Final answer
    x = 168,450.95

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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.