Home / 388,111.50-582,167.25-107,628.75

Finding the Fourth Proportional to 388,111.50, 582,167.25 and 107,628.75

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Solution

The fourth proportional to 388,111.50, 582,167.25 and 107,628.75 is: 161,443.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,111.50 : 582,167.25 = 107,628.75 : x
  2. Step 2: Convert to fraction form
    388,111.50/582,167.25 = 107,628.75/x
  3. Step 3: Cross multiply
    388,111.50x = 582,167.25 × 107,628.75
  4. Step 4: Simplify right side
    388,111.50x = 62,657,933,408.44
  5. Step 5: Solve for x
    x = 62,657,933,408.44/388,111.50
  6. Step 6: Final answer
    x = 161,443.13

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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.