Home / 321,680.15-443,971.85-178,486.33

Finding the Fourth Proportional to 321,680.15, 443,971.85 and 178,486.33

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Solution

The fourth proportional to 321,680.15, 443,971.85 and 178,486.33 is: 246,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,680.15 : 443,971.85 = 178,486.33 : x
  2. Step 2: Convert to fraction form
    321,680.15/443,971.85 = 178,486.33/x
  3. Step 3: Cross multiply
    321,680.15x = 443,971.85 × 178,486.33
  4. Step 4: Simplify right side
    321,680.15x = 79,242,906,129.81
  5. Step 5: Solve for x
    x = 79,242,906,129.81/321,680.15
  6. Step 6: Final answer
    x = 246,340.68

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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.