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Finding the Fourth Proportional to 179,810.80, 269,255.40 and 132,809.20

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Solution

The fourth proportional to 179,810.80, 269,255.40 and 132,809.20 is: 198,873.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,810.80 : 269,255.40 = 132,809.20 : x
  2. Step 2: Convert to fraction form
    179,810.80/269,255.40 = 132,809.20/x
  3. Step 3: Cross multiply
    179,810.80x = 269,255.40 × 132,809.20
  4. Step 4: Simplify right side
    179,810.80x = 35,759,594,269.68
  5. Step 5: Solve for x
    x = 35,759,594,269.68/179,810.80
  6. Step 6: Final answer
    x = 198,873.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.