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Finding the Fourth Proportional to 187.26, 278.74 and 184.66

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Solution

The fourth proportional to 187.26, 278.74 and 184.66 is: 274.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.26 : 278.74 = 184.66 : x
  2. Step 2: Convert to fraction form
    187.26/278.74 = 184.66/x
  3. Step 3: Cross multiply
    187.26x = 278.74 × 184.66
  4. Step 4: Simplify right side
    187.26x = 51,472.13
  5. Step 5: Solve for x
    x = 51,472.13/187.26
  6. Step 6: Final answer
    x = 274.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.