Home / 438,921.32-658,400.27-214,013.88

Finding the Fourth Proportional to 438,921.32, 658,400.27 and 214,013.88

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Solution

The fourth proportional to 438,921.32, 658,400.27 and 214,013.88 is: 321,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,921.32 : 658,400.27 = 214,013.88 : x
  2. Step 2: Convert to fraction form
    438,921.32/658,400.27 = 214,013.88/x
  3. Step 3: Cross multiply
    438,921.32x = 658,400.27 × 214,013.88
  4. Step 4: Simplify right side
    438,921.32x = 140,906,795,305.68
  5. Step 5: Solve for x
    x = 140,906,795,305.68/438,921.32
  6. Step 6: Final answer
    x = 321,029.74

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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.