Home / 438,864.57-658,238.49-172,553.58

Finding the Fourth Proportional to 438,864.57, 658,238.49 and 172,553.58

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Solution

The fourth proportional to 438,864.57, 658,238.49 and 172,553.58 is: 258,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,864.57 : 658,238.49 = 172,553.58 : x
  2. Step 2: Convert to fraction form
    438,864.57/658,238.49 = 172,553.58/x
  3. Step 3: Cross multiply
    438,864.57x = 658,238.49 × 172,553.58
  4. Step 4: Simplify right side
    438,864.57x = 113,581,407,943.29
  5. Step 5: Solve for x
    x = 113,581,407,943.29/438,864.57
  6. Step 6: Final answer
    x = 258,807.42

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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.