Home / 438,976.25-658,464.60-123,433.15

Finding the Fourth Proportional to 438,976.25, 658,464.60 and 123,433.15

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Solution

The fourth proportional to 438,976.25, 658,464.60 and 123,433.15 is: 185,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,976.25 : 658,464.60 = 123,433.15 : x
  2. Step 2: Convert to fraction form
    438,976.25/658,464.60 = 123,433.15/x
  3. Step 3: Cross multiply
    438,976.25x = 658,464.60 × 123,433.15
  4. Step 4: Simplify right side
    438,976.25x = 81,276,359,741.49
  5. Step 5: Solve for x
    x = 81,276,359,741.49/438,976.25
  6. Step 6: Final answer
    x = 185,149.79

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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.