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Finding the Fourth Proportional to 737.98, 1,107.40 and 299.14

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Solution

The fourth proportional to 737.98, 1,107.40 and 299.14 is: 448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.98 : 1,107.40 = 299.14 : x
  2. Step 2: Convert to fraction form
    737.98/1,107.40 = 299.14/x
  3. Step 3: Cross multiply
    737.98x = 1,107.40 × 299.14
  4. Step 4: Simplify right side
    737.98x = 331,267.64
  5. Step 5: Solve for x
    x = 331,267.64/737.98
  6. Step 6: Final answer
    x = 448.88

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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.