Home / 438,659.28-658,232.22-214,021.56

Finding the Fourth Proportional to 438,659.28, 658,232.22 and 214,021.56

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Solution

The fourth proportional to 438,659.28, 658,232.22 and 214,021.56 is: 321,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,659.28 : 658,232.22 = 214,021.56 : x
  2. Step 2: Convert to fraction form
    438,659.28/658,232.22 = 214,021.56/x
  3. Step 3: Cross multiply
    438,659.28x = 658,232.22 × 214,021.56
  4. Step 4: Simplify right side
    438,659.28x = 140,875,886,566.66
  5. Step 5: Solve for x
    x = 140,875,886,566.66/438,659.28
  6. Step 6: Final answer
    x = 321,151.05

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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.