Home / 438,660.28-658,233.72-214,022.56

Finding the Fourth Proportional to 438,660.28, 658,233.72 and 214,022.56

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Solution

The fourth proportional to 438,660.28, 658,233.72 and 214,022.56 is: 321,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,660.28 : 658,233.72 = 214,022.56 : x
  2. Step 2: Convert to fraction form
    438,660.28/658,233.72 = 214,022.56/x
  3. Step 3: Cross multiply
    438,660.28x = 658,233.72 × 214,022.56
  4. Step 4: Simplify right side
    438,660.28x = 140,876,865,832.72
  5. Step 5: Solve for x
    x = 140,876,865,832.72/438,660.28
  6. Step 6: Final answer
    x = 321,152.55

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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.