Home / 204,655.86-280,379.55-196,985.55

Finding the Fourth Proportional to 204,655.86, 280,379.55 and 196,985.55

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Solution

The fourth proportional to 204,655.86, 280,379.55 and 196,985.55 is: 269,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,655.86 : 280,379.55 = 196,985.55 : x
  2. Step 2: Convert to fraction form
    204,655.86/280,379.55 = 196,985.55/x
  3. Step 3: Cross multiply
    204,655.86x = 280,379.55 × 196,985.55
  4. Step 4: Simplify right side
    204,655.86x = 55,230,719,865.50
  5. Step 5: Solve for x
    x = 55,230,719,865.50/204,655.86
  6. Step 6: Final answer
    x = 269,871.19

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.