Home / 267,823.24-401,760.78-78,279.34

Finding the Fourth Proportional to 267,823.24, 401,760.78 and 78,279.34

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Solution

The fourth proportional to 267,823.24, 401,760.78 and 78,279.34 is: 117,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,823.24 : 401,760.78 = 78,279.34 : x
  2. Step 2: Convert to fraction form
    267,823.24/401,760.78 = 78,279.34/x
  3. Step 3: Cross multiply
    267,823.24x = 401,760.78 × 78,279.34
  4. Step 4: Simplify right side
    267,823.24x = 31,449,568,696.29
  5. Step 5: Solve for x
    x = 31,449,568,696.29/267,823.24
  6. Step 6: Final answer
    x = 117,426.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.