Home / 279,327.10-385,664.25-261,481.18

Finding the Fourth Proportional to 279,327.10, 385,664.25 and 261,481.18

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Solution

The fourth proportional to 279,327.10, 385,664.25 and 261,481.18 is: 361,024.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,327.10 : 385,664.25 = 261,481.18 : x
  2. Step 2: Convert to fraction form
    279,327.10/385,664.25 = 261,481.18/x
  3. Step 3: Cross multiply
    279,327.10x = 385,664.25 × 261,481.18
  4. Step 4: Simplify right side
    279,327.10x = 100,843,943,173.82
  5. Step 5: Solve for x
    x = 100,843,943,173.82/279,327.10
  6. Step 6: Final answer
    x = 361,024.56

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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.