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Finding the Fourth Proportional to 239,669.64, 330,745.86 and 132,243.57

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Solution

The fourth proportional to 239,669.64, 330,745.86 and 132,243.57 is: 182,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,669.64 : 330,745.86 = 132,243.57 : x
  2. Step 2: Convert to fraction form
    239,669.64/330,745.86 = 132,243.57/x
  3. Step 3: Cross multiply
    239,669.64x = 330,745.86 × 132,243.57
  4. Step 4: Simplify right side
    239,669.64x = 43,739,013,289.12
  5. Step 5: Solve for x
    x = 43,739,013,289.12/239,669.64
  6. Step 6: Final answer
    x = 182,497.10

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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.