Home / 438,642.43-658,026.40-135,062.26

Finding the Fourth Proportional to 438,642.43, 658,026.40 and 135,062.26

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Solution

The fourth proportional to 438,642.43, 658,026.40 and 135,062.26 is: 202,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,642.43 : 658,026.40 = 135,062.26 : x
  2. Step 2: Convert to fraction form
    438,642.43/658,026.40 = 135,062.26/x
  3. Step 3: Cross multiply
    438,642.43x = 658,026.40 × 135,062.26
  4. Step 4: Simplify right side
    438,642.43x = 88,874,532,723.66
  5. Step 5: Solve for x
    x = 88,874,532,723.66/438,642.43
  6. Step 6: Final answer
    x = 202,612.71

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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.