Home / 438,744.06-658,214.51-139,234.41

Finding the Fourth Proportional to 438,744.06, 658,214.51 and 139,234.41

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Solution

The fourth proportional to 438,744.06, 658,214.51 and 139,234.41 is: 208,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,744.06 : 658,214.51 = 139,234.41 : x
  2. Step 2: Convert to fraction form
    438,744.06/658,214.51 = 139,234.41/x
  3. Step 3: Cross multiply
    438,744.06x = 658,214.51 × 139,234.41
  4. Step 4: Simplify right side
    438,744.06x = 91,646,108,257.12
  5. Step 5: Solve for x
    x = 91,646,108,257.12/438,744.06
  6. Step 6: Final answer
    x = 208,882.85

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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.