Home / 321,385.20-443,516.04-176,204.64

Finding the Fourth Proportional to 321,385.20, 443,516.04 and 176,204.64

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Solution

The fourth proportional to 321,385.20, 443,516.04 and 176,204.64 is: 243,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,385.20 : 443,516.04 = 176,204.64 : x
  2. Step 2: Convert to fraction form
    321,385.20/443,516.04 = 176,204.64/x
  3. Step 3: Cross multiply
    321,385.20x = 443,516.04 × 176,204.64
  4. Step 4: Simplify right side
    321,385.20x = 78,149,584,162.43
  5. Step 5: Solve for x
    x = 78,149,584,162.43/321,385.20
  6. Step 6: Final answer
    x = 243,164.85

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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.