Home / 279,170.32-385,263.64-158,316.56

Finding the Fourth Proportional to 279,170.32, 385,263.64 and 158,316.56

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Solution

The fourth proportional to 279,170.32, 385,263.64 and 158,316.56 is: 218,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,170.32 : 385,263.64 = 158,316.56 : x
  2. Step 2: Convert to fraction form
    279,170.32/385,263.64 = 158,316.56/x
  3. Step 3: Cross multiply
    279,170.32x = 385,263.64 × 158,316.56
  4. Step 4: Simplify right side
    279,170.32x = 60,993,614,177.88
  5. Step 5: Solve for x
    x = 60,993,614,177.88/279,170.32
  6. Step 6: Final answer
    x = 218,481.73

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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.