Home / 659,445.20-989,149.26-210,193

Finding the Fourth Proportional to 659,445.20, 989,149.26 and 210,193

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Solution

The fourth proportional to 659,445.20, 989,149.26 and 210,193 is: 315,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,445.20 : 989,149.26 = 210,193 : x
  2. Step 2: Convert to fraction form
    659,445.20/989,149.26 = 210,193/x
  3. Step 3: Cross multiply
    659,445.20x = 989,149.26 × 210,193
  4. Step 4: Simplify right side
    659,445.20x = 207,912,250,407.18
  5. Step 5: Solve for x
    x = 207,912,250,407.18/659,445.20
  6. Step 6: Final answer
    x = 315,283.59

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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.