Home / 388,236.43-582,494.77-135,554.14

Finding the Fourth Proportional to 388,236.43, 582,494.77 and 135,554.14

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Solution

The fourth proportional to 388,236.43, 582,494.77 and 135,554.14 is: 203,380.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,236.43 : 582,494.77 = 135,554.14 : x
  2. Step 2: Convert to fraction form
    388,236.43/582,494.77 = 135,554.14/x
  3. Step 3: Cross multiply
    388,236.43x = 582,494.77 × 135,554.14
  4. Step 4: Simplify right side
    388,236.43x = 78,959,577,601.85
  5. Step 5: Solve for x
    x = 78,959,577,601.85/388,236.43
  6. Step 6: Final answer
    x = 203,380.14

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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.