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Finding the Fourth Proportional to 404,026.80, 606,040.20 and 137,723.10

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Solution

The fourth proportional to 404,026.80, 606,040.20 and 137,723.10 is: 206,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,026.80 : 606,040.20 = 137,723.10 : x
  2. Step 2: Convert to fraction form
    404,026.80/606,040.20 = 137,723.10/x
  3. Step 3: Cross multiply
    404,026.80x = 606,040.20 × 137,723.10
  4. Step 4: Simplify right side
    404,026.80x = 83,465,735,068.62
  5. Step 5: Solve for x
    x = 83,465,735,068.62/404,026.80
  6. Step 6: Final answer
    x = 206,584.65

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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.