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Finding the Fourth Proportional to 248,486, 372,787.32 and 82,274

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Solution

The fourth proportional to 248,486, 372,787.32 and 82,274 is: 123,430.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,486 : 372,787.32 = 82,274 : x
  2. Step 2: Convert to fraction form
    248,486/372,787.32 = 82,274/x
  3. Step 3: Cross multiply
    248,486x = 372,787.32 × 82,274
  4. Step 4: Simplify right side
    248,486x = 30,670,703,965.68
  5. Step 5: Solve for x
    x = 30,670,703,965.68/248,486
  6. Step 6: Final answer
    x = 123,430.31

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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.