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Finding the Fourth Proportional to 321,182.58, 443,246.48 and 177,942.62

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Solution

The fourth proportional to 321,182.58, 443,246.48 and 177,942.62 is: 245,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,182.58 : 443,246.48 = 177,942.62 : x
  2. Step 2: Convert to fraction form
    321,182.58/443,246.48 = 177,942.62/x
  3. Step 3: Cross multiply
    321,182.58x = 443,246.48 × 177,942.62
  4. Step 4: Simplify right side
    321,182.58x = 78,872,440,842.67
  5. Step 5: Solve for x
    x = 78,872,440,842.67/321,182.58
  6. Step 6: Final answer
    x = 245,568.86

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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.