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Finding the Fourth Proportional to 239,619.64, 330,675.44 and 132,189.44

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Solution

The fourth proportional to 239,619.64, 330,675.44 and 132,189.44 is: 182,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,619.64 : 330,675.44 = 132,189.44 : x
  2. Step 2: Convert to fraction form
    239,619.64/330,675.44 = 132,189.44/x
  3. Step 3: Cross multiply
    239,619.64x = 330,675.44 × 132,189.44
  4. Step 4: Simplify right side
    239,619.64x = 43,711,801,235.35
  5. Step 5: Solve for x
    x = 43,711,801,235.35/239,619.64
  6. Step 6: Final answer
    x = 182,421.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.