Home / 663,500.96-995,221.20-214,242.56

Finding the Fourth Proportional to 663,500.96, 995,221.20 and 214,242.56

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Solution

The fourth proportional to 663,500.96, 995,221.20 and 214,242.56 is: 321,354.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,500.96 : 995,221.20 = 214,242.56 : x
  2. Step 2: Convert to fraction form
    663,500.96/995,221.20 = 214,242.56/x
  3. Step 3: Cross multiply
    663,500.96x = 995,221.20 × 214,242.56
  4. Step 4: Simplify right side
    663,500.96x = 213,218,737,654.27
  5. Step 5: Solve for x
    x = 213,218,737,654.27/663,500.96
  6. Step 6: Final answer
    x = 321,354.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.