Home / 439,093.20-658,639.80-172,708.10

Finding the Fourth Proportional to 439,093.20, 658,639.80 and 172,708.10

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Solution

The fourth proportional to 439,093.20, 658,639.80 and 172,708.10 is: 259,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,093.20 : 658,639.80 = 172,708.10 : x
  2. Step 2: Convert to fraction form
    439,093.20/658,639.80 = 172,708.10/x
  3. Step 3: Cross multiply
    439,093.20x = 658,639.80 × 172,708.10
  4. Step 4: Simplify right side
    439,093.20x = 113,752,425,149.18
  5. Step 5: Solve for x
    x = 113,752,425,149.18/439,093.20
  6. Step 6: Final answer
    x = 259,062.14

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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.