Home / 321,400.90-443,530.26-176,214.75

Finding the Fourth Proportional to 321,400.90, 443,530.26 and 176,214.75

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Solution

The fourth proportional to 321,400.90, 443,530.26 and 176,214.75 is: 243,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,400.90 : 443,530.26 = 176,214.75 : x
  2. Step 2: Convert to fraction form
    321,400.90/443,530.26 = 176,214.75/x
  3. Step 3: Cross multiply
    321,400.90x = 443,530.26 × 176,214.75
  4. Step 4: Simplify right side
    321,400.90x = 78,156,573,853.14
  5. Step 5: Solve for x
    x = 78,156,573,853.14/321,400.90
  6. Step 6: Final answer
    x = 243,174.72

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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.