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Finding the Fourth Proportional to 388,511.44, 582,800.16 and 108,028.69

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Solution

The fourth proportional to 388,511.44, 582,800.16 and 108,028.69 is: 162,052.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,511.44 : 582,800.16 = 108,028.69 : x
  2. Step 2: Convert to fraction form
    388,511.44/582,800.16 = 108,028.69/x
  3. Step 3: Cross multiply
    388,511.44x = 582,800.16 × 108,028.69
  4. Step 4: Simplify right side
    388,511.44x = 62,959,136,764.70
  5. Step 5: Solve for x
    x = 62,959,136,764.70/388,511.44
  6. Step 6: Final answer
    x = 162,052.21

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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.