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Finding the Fourth Proportional to 274.88, 412.56 and 183.69

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Solution

The fourth proportional to 274.88, 412.56 and 183.69 is: 275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.88 : 412.56 = 183.69 : x
  2. Step 2: Convert to fraction form
    274.88/412.56 = 183.69/x
  3. Step 3: Cross multiply
    274.88x = 412.56 × 183.69
  4. Step 4: Simplify right side
    274.88x = 75,783.15
  5. Step 5: Solve for x
    x = 75,783.15/274.88
  6. Step 6: Final answer
    x = 275.69

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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.