Home / 321,112.32-443,135.04-177,881.64

Finding the Fourth Proportional to 321,112.32, 443,135.04 and 177,881.64

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Solution

The fourth proportional to 321,112.32, 443,135.04 and 177,881.64 is: 245,476.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,112.32 : 443,135.04 = 177,881.64 : x
  2. Step 2: Convert to fraction form
    321,112.32/443,135.04 = 177,881.64/x
  3. Step 3: Cross multiply
    321,112.32x = 443,135.04 × 177,881.64
  4. Step 4: Simplify right side
    321,112.32x = 78,825,587,656.67
  5. Step 5: Solve for x
    x = 78,825,587,656.67/321,112.32
  6. Step 6: Final answer
    x = 245,476.68

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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.