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Finding the Fourth Proportional to 272.79, 376.52 and 185.31

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Solution

The fourth proportional to 272.79, 376.52 and 185.31 is: 255.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.79 : 376.52 = 185.31 : x
  2. Step 2: Convert to fraction form
    272.79/376.52 = 185.31/x
  3. Step 3: Cross multiply
    272.79x = 376.52 × 185.31
  4. Step 4: Simplify right side
    272.79x = 69,771.99
  5. Step 5: Solve for x
    x = 69,771.99/272.79
  6. Step 6: Final answer
    x = 255.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.