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Finding the Fourth Proportional to 239,843.32, 330,994.86 and 132,428.60

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Solution

The fourth proportional to 239,843.32, 330,994.86 and 132,428.60 is: 182,757.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,843.32 : 330,994.86 = 132,428.60 : x
  2. Step 2: Convert to fraction form
    239,843.32/330,994.86 = 132,428.60/x
  3. Step 3: Cross multiply
    239,843.32x = 330,994.86 × 132,428.60
  4. Step 4: Simplify right side
    239,843.32x = 43,833,185,917.00
  5. Step 5: Solve for x
    x = 43,833,185,917.00/239,843.32
  6. Step 6: Final answer
    x = 182,757.58

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1.5x scale

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.