Home / 279,694.09-385,967.56-170,980.52

Finding the Fourth Proportional to 279,694.09, 385,967.56 and 170,980.52

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Solution

The fourth proportional to 279,694.09, 385,967.56 and 170,980.52 is: 235,946.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,694.09 : 385,967.56 = 170,980.52 : x
  2. Step 2: Convert to fraction form
    279,694.09/385,967.56 = 170,980.52/x
  3. Step 3: Cross multiply
    279,694.09x = 385,967.56 × 170,980.52
  4. Step 4: Simplify right side
    279,694.09x = 65,992,933,765.42
  5. Step 5: Solve for x
    x = 65,992,933,765.42/279,694.09
  6. Step 6: Final answer
    x = 235,946.83

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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.