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Finding the Fourth Proportional to 388,198, 582,297.27 and 107,715.52

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Solution

The fourth proportional to 388,198, 582,297.27 and 107,715.52 is: 161,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,198 : 582,297.27 = 107,715.52 : x
  2. Step 2: Convert to fraction form
    388,198/582,297.27 = 107,715.52/x
  3. Step 3: Cross multiply
    388,198x = 582,297.27 × 107,715.52
  4. Step 4: Simplify right side
    388,198x = 62,722,453,232.63
  5. Step 5: Solve for x
    x = 62,722,453,232.63/388,198
  6. Step 6: Final answer
    x = 161,573.35

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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.