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Finding the Fourth Proportional to 248,651.64, 372,909.12 and 68,694

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Solution

The fourth proportional to 248,651.64, 372,909.12 and 68,694 is: 103,022.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,651.64 : 372,909.12 = 68,694 : x
  2. Step 2: Convert to fraction form
    248,651.64/372,909.12 = 68,694/x
  3. Step 3: Cross multiply
    248,651.64x = 372,909.12 × 68,694
  4. Step 4: Simplify right side
    248,651.64x = 25,616,619,089.28
  5. Step 5: Solve for x
    x = 25,616,619,089.28/248,651.64
  6. Step 6: Final answer
    x = 103,022.12

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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.