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Finding the Fourth Proportional to 239,790.65, 330,911.15 and 132,360.71

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Solution

The fourth proportional to 239,790.65, 330,911.15 and 132,360.71 is: 182,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,790.65 : 330,911.15 = 132,360.71 : x
  2. Step 2: Convert to fraction form
    239,790.65/330,911.15 = 132,360.71/x
  3. Step 3: Cross multiply
    239,790.65x = 330,911.15 × 132,360.71
  4. Step 4: Simplify right side
    239,790.65x = 43,799,632,444.56
  5. Step 5: Solve for x
    x = 43,799,632,444.56/239,790.65
  6. Step 6: Final answer
    x = 182,657.80

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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.