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Finding the Fourth Proportional to 239,665.68, 330,738.38 and 132,235.70

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Solution

The fourth proportional to 239,665.68, 330,738.38 and 132,235.70 is: 182,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,665.68 : 330,738.38 = 132,235.70 : x
  2. Step 2: Convert to fraction form
    239,665.68/330,738.38 = 132,235.70/x
  3. Step 3: Cross multiply
    239,665.68x = 330,738.38 × 132,235.70
  4. Step 4: Simplify right side
    239,665.68x = 43,735,421,113.33
  5. Step 5: Solve for x
    x = 43,735,421,113.33/239,665.68
  6. Step 6: Final answer
    x = 182,485.13

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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.