Home / 279,412.22-385,578.17-158,546.30

Finding the Fourth Proportional to 279,412.22, 385,578.17 and 158,546.30

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Solution

The fourth proportional to 279,412.22, 385,578.17 and 158,546.30 is: 218,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,412.22 : 385,578.17 = 158,546.30 : x
  2. Step 2: Convert to fraction form
    279,412.22/385,578.17 = 158,546.30/x
  3. Step 3: Cross multiply
    279,412.22x = 385,578.17 × 158,546.30
  4. Step 4: Simplify right side
    279,412.22x = 61,131,989,493.65
  5. Step 5: Solve for x
    x = 61,131,989,493.65/279,412.22
  6. Step 6: Final answer
    x = 218,787.82

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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.