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Finding the Fourth Proportional to 221,169.25, 331,753.88 and 73,425.25

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Solution

The fourth proportional to 221,169.25, 331,753.88 and 73,425.25 is: 110,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,169.25 : 331,753.88 = 73,425.25 : x
  2. Step 2: Convert to fraction form
    221,169.25/331,753.88 = 73,425.25/x
  3. Step 3: Cross multiply
    221,169.25x = 331,753.88 × 73,425.25
  4. Step 4: Simplify right side
    221,169.25x = 24,359,111,577.47
  5. Step 5: Solve for x
    x = 24,359,111,577.47/221,169.25
  6. Step 6: Final answer
    x = 110,137.88

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1.5x scale

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.