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Finding the Fourth Proportional to 227.61, 313.87 and 186.03

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Solution

The fourth proportional to 227.61, 313.87 and 186.03 is: 256.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.61 : 313.87 = 186.03 : x
  2. Step 2: Convert to fraction form
    227.61/313.87 = 186.03/x
  3. Step 3: Cross multiply
    227.61x = 313.87 × 186.03
  4. Step 4: Simplify right side
    227.61x = 58,387.99
  5. Step 5: Solve for x
    x = 58,387.99/227.61
  6. Step 6: Final answer
    x = 256.53

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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.