Home / 321,273.64-443,360.10-178,036

Finding the Fourth Proportional to 321,273.64, 443,360.10 and 178,036

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Solution

The fourth proportional to 321,273.64, 443,360.10 and 178,036 is: 245,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,273.64 : 443,360.10 = 178,036 : x
  2. Step 2: Convert to fraction form
    321,273.64/443,360.10 = 178,036/x
  3. Step 3: Cross multiply
    321,273.64x = 443,360.10 × 178,036
  4. Step 4: Simplify right side
    321,273.64x = 78,934,058,763.60
  5. Step 5: Solve for x
    x = 78,934,058,763.60/321,273.64
  6. Step 6: Final answer
    x = 245,691.05

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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.