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Finding the Fourth Proportional to 239,698.88, 330,784.20 and 132,268.88

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Solution

The fourth proportional to 239,698.88, 330,784.20 and 132,268.88 is: 182,530.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,698.88 : 330,784.20 = 132,268.88 : x
  2. Step 2: Convert to fraction form
    239,698.88/330,784.20 = 132,268.88/x
  3. Step 3: Cross multiply
    239,698.88x = 330,784.20 × 132,268.88
  4. Step 4: Simplify right side
    239,698.88x = 43,752,455,655.70
  5. Step 5: Solve for x
    x = 43,752,455,655.70/239,698.88
  6. Step 6: Final answer
    x = 182,530.91

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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.