Home / 399,589.28-551,444.03-238,537.80

Finding the Fourth Proportional to 399,589.28, 551,444.03 and 238,537.80

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Solution

The fourth proportional to 399,589.28, 551,444.03 and 238,537.80 is: 329,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,589.28 : 551,444.03 = 238,537.80 : x
  2. Step 2: Convert to fraction form
    399,589.28/551,444.03 = 238,537.80/x
  3. Step 3: Cross multiply
    399,589.28x = 551,444.03 × 238,537.80
  4. Step 4: Simplify right side
    399,589.28x = 131,540,244,546.65
  5. Step 5: Solve for x
    x = 131,540,244,546.65/399,589.28
  6. Step 6: Final answer
    x = 329,188.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.