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Finding the Fourth Proportional to 279,687.01, 419,896.38 and 166,042.29

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Solution

The fourth proportional to 279,687.01, 419,896.38 and 166,042.29 is: 249,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,687.01 : 419,896.38 = 166,042.29 : x
  2. Step 2: Convert to fraction form
    279,687.01/419,896.38 = 166,042.29/x
  3. Step 3: Cross multiply
    279,687.01x = 419,896.38 × 166,042.29
  4. Step 4: Simplify right side
    279,687.01x = 69,720,556,333.26
  5. Step 5: Solve for x
    x = 69,720,556,333.26/279,687.01
  6. Step 6: Final answer
    x = 249,280.64

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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.