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Finding the Fourth Proportional to 179,686.80, 269,530.20 and 144,694.80

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Solution

The fourth proportional to 179,686.80, 269,530.20 and 144,694.80 is: 217,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,686.80 : 269,530.20 = 144,694.80 : x
  2. Step 2: Convert to fraction form
    179,686.80/269,530.20 = 144,694.80/x
  3. Step 3: Cross multiply
    179,686.80x = 269,530.20 × 144,694.80
  4. Step 4: Simplify right side
    179,686.80x = 38,999,618,382.96
  5. Step 5: Solve for x
    x = 38,999,618,382.96/179,686.80
  6. Step 6: Final answer
    x = 217,042.20

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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.