Home / 388,273.98-582,580.56-135,735.78

Finding the Fourth Proportional to 388,273.98, 582,580.56 and 135,735.78

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Solution

The fourth proportional to 388,273.98, 582,580.56 and 135,735.78 is: 203,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,273.98 : 582,580.56 = 135,735.78 : x
  2. Step 2: Convert to fraction form
    388,273.98/582,580.56 = 135,735.78/x
  3. Step 3: Cross multiply
    388,273.98x = 582,580.56 × 135,735.78
  4. Step 4: Simplify right side
    388,273.98x = 79,077,026,724.44
  5. Step 5: Solve for x
    x = 79,077,026,724.44/388,273.98
  6. Step 6: Final answer
    x = 203,662.96

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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.