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Finding the Fourth Proportional to 239,080.80, 329,718.22 and 170,034.78

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Solution

The fourth proportional to 239,080.80, 329,718.22 and 170,034.78 is: 234,496.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,080.80 : 329,718.22 = 170,034.78 : x
  2. Step 2: Convert to fraction form
    239,080.80/329,718.22 = 170,034.78/x
  3. Step 3: Cross multiply
    239,080.80x = 329,718.22 × 170,034.78
  4. Step 4: Simplify right side
    239,080.80x = 56,063,564,999.69
  5. Step 5: Solve for x
    x = 56,063,564,999.69/239,080.80
  6. Step 6: Final answer
    x = 234,496.31

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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.