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Finding the Fourth Proportional to 248,045, 372,067.50 and 72,941

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Solution

The fourth proportional to 248,045, 372,067.50 and 72,941 is: 109,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,045 : 372,067.50 = 72,941 : x
  2. Step 2: Convert to fraction form
    248,045/372,067.50 = 72,941/x
  3. Step 3: Cross multiply
    248,045x = 372,067.50 × 72,941
  4. Step 4: Simplify right side
    248,045x = 27,138,975,517.50
  5. Step 5: Solve for x
    x = 27,138,975,517.50/248,045
  6. Step 6: Final answer
    x = 109,411.50

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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.