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Finding the Fourth Proportional to 239,478.39, 330,473.79 and 132,046.56

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Solution

The fourth proportional to 239,478.39, 330,473.79 and 132,046.56 is: 182,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,478.39 : 330,473.79 = 132,046.56 : x
  2. Step 2: Convert to fraction form
    239,478.39/330,473.79 = 132,046.56/x
  3. Step 3: Cross multiply
    239,478.39x = 330,473.79 × 132,046.56
  4. Step 4: Simplify right side
    239,478.39x = 43,637,927,139.66
  5. Step 5: Solve for x
    x = 43,637,927,139.66/239,478.39
  6. Step 6: Final answer
    x = 182,220.73

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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.