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Finding the Fourth Proportional to 388,551.96, 582,825.78 and 122,331.96

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Solution

The fourth proportional to 388,551.96, 582,825.78 and 122,331.96 is: 183,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,551.96 : 582,825.78 = 122,331.96 : x
  2. Step 2: Convert to fraction form
    388,551.96/582,825.78 = 122,331.96/x
  3. Step 3: Cross multiply
    388,551.96x = 582,825.78 × 122,331.96
  4. Step 4: Simplify right side
    388,551.96x = 71,298,220,005.93
  5. Step 5: Solve for x
    x = 71,298,220,005.93/388,551.96
  6. Step 6: Final answer
    x = 183,497.26

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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.