Home / 388,112.50-582,168.75-107,629.75

Finding the Fourth Proportional to 388,112.50, 582,168.75 and 107,629.75

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Solution

The fourth proportional to 388,112.50, 582,168.75 and 107,629.75 is: 161,444.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,112.50 : 582,168.75 = 107,629.75 : x
  2. Step 2: Convert to fraction form
    388,112.50/582,168.75 = 107,629.75/x
  3. Step 3: Cross multiply
    388,112.50x = 582,168.75 × 107,629.75
  4. Step 4: Simplify right side
    388,112.50x = 62,658,677,020.31
  5. Step 5: Solve for x
    x = 62,658,677,020.31/388,112.50
  6. Step 6: Final answer
    x = 161,444.63

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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.