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Finding the Fourth Proportional to 737.19, 1,105.67 and 274.89

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Solution

The fourth proportional to 737.19, 1,105.67 and 274.89 is: 412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.19 : 1,105.67 = 274.89 : x
  2. Step 2: Convert to fraction form
    737.19/1,105.67 = 274.89/x
  3. Step 3: Cross multiply
    737.19x = 1,105.67 × 274.89
  4. Step 4: Simplify right side
    737.19x = 303,937.63
  5. Step 5: Solve for x
    x = 303,937.63/737.19
  6. Step 6: Final answer
    x = 412.29

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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.