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Finding the Fourth Proportional to 248,468, 372,760.32 and 82,256

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Solution

The fourth proportional to 248,468, 372,760.32 and 82,256 is: 123,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,468 : 372,760.32 = 82,256 : x
  2. Step 2: Convert to fraction form
    248,468/372,760.32 = 82,256/x
  3. Step 3: Cross multiply
    248,468x = 372,760.32 × 82,256
  4. Step 4: Simplify right side
    248,468x = 30,661,772,881.92
  5. Step 5: Solve for x
    x = 30,661,772,881.92/248,468
  6. Step 6: Final answer
    x = 123,403.31

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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.