Home / 279,335.08-385,491.15-158,481.46

Finding the Fourth Proportional to 279,335.08, 385,491.15 and 158,481.46

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Solution

The fourth proportional to 279,335.08, 385,491.15 and 158,481.46 is: 218,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,335.08 : 385,491.15 = 158,481.46 : x
  2. Step 2: Convert to fraction form
    279,335.08/385,491.15 = 158,481.46/x
  3. Step 3: Cross multiply
    279,335.08x = 385,491.15 × 158,481.46
  4. Step 4: Simplify right side
    279,335.08x = 61,093,200,269.08
  5. Step 5: Solve for x
    x = 61,093,200,269.08/279,335.08
  6. Step 6: Final answer
    x = 218,709.37

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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.