Home / 395,982.11-546,422.66-223,917.66

Finding the Fourth Proportional to 395,982.11, 546,422.66 and 223,917.66

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Solution

The fourth proportional to 395,982.11, 546,422.66 and 223,917.66 is: 308,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,982.11 : 546,422.66 = 223,917.66 : x
  2. Step 2: Convert to fraction form
    395,982.11/546,422.66 = 223,917.66/x
  3. Step 3: Cross multiply
    395,982.11x = 546,422.66 × 223,917.66
  4. Step 4: Simplify right side
    395,982.11x = 122,353,682,278.59
  5. Step 5: Solve for x
    x = 122,353,682,278.59/395,982.11
  6. Step 6: Final answer
    x = 308,987.91

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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.