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Finding the Fourth Proportional to 204.37, 304.98 and 187.09

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Solution

The fourth proportional to 204.37, 304.98 and 187.09 is: 279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.37 : 304.98 = 187.09 : x
  2. Step 2: Convert to fraction form
    204.37/304.98 = 187.09/x
  3. Step 3: Cross multiply
    204.37x = 304.98 × 187.09
  4. Step 4: Simplify right side
    204.37x = 57,056.25
  5. Step 5: Solve for x
    x = 57,056.25/204.37
  6. Step 6: Final answer
    x = 279.19

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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.