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Finding the Fourth Proportional to 248,508, 372,770.64 and 82,291.68

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Solution

The fourth proportional to 248,508, 372,770.64 and 82,291.68 is: 123,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,508 : 372,770.64 = 82,291.68 : x
  2. Step 2: Convert to fraction form
    248,508/372,770.64 = 82,291.68/x
  3. Step 3: Cross multiply
    248,508x = 372,770.64 × 82,291.68
  4. Step 4: Simplify right side
    248,508x = 30,675,922,220.28
  5. Step 5: Solve for x
    x = 30,675,922,220.28/248,508
  6. Step 6: Final answer
    x = 123,440.38

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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.