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Finding the Fourth Proportional to 230,809.60, 345,922.80 and 168,407.20

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Solution

The fourth proportional to 230,809.60, 345,922.80 and 168,407.20 is: 252,398.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,809.60 : 345,922.80 = 168,407.20 : x
  2. Step 2: Convert to fraction form
    230,809.60/345,922.80 = 168,407.20/x
  3. Step 3: Cross multiply
    230,809.60x = 345,922.80 × 168,407.20
  4. Step 4: Simplify right side
    230,809.60x = 58,255,890,164.16
  5. Step 5: Solve for x
    x = 58,255,890,164.16/230,809.60
  6. Step 6: Final answer
    x = 252,398.04

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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.