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Finding the Fourth Proportional to 187.88, 277.88 and 187.88

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Solution

The fourth proportional to 187.88, 277.88 and 187.88 is: 277.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.88 : 277.88 = 187.88 : x
  2. Step 2: Convert to fraction form
    187.88/277.88 = 187.88/x
  3. Step 3: Cross multiply
    187.88x = 277.88 × 187.88
  4. Step 4: Simplify right side
    187.88x = 52,208.09
  5. Step 5: Solve for x
    x = 52,208.09/187.88
  6. Step 6: Final answer
    x = 277.88

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.