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Finding the Fourth Proportional to 228.51, 341.26 and 187.44

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Solution

The fourth proportional to 228.51, 341.26 and 187.44 is: 279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.51 : 341.26 = 187.44 : x
  2. Step 2: Convert to fraction form
    228.51/341.26 = 187.44/x
  3. Step 3: Cross multiply
    228.51x = 341.26 × 187.44
  4. Step 4: Simplify right side
    228.51x = 63,965.31
  5. Step 5: Solve for x
    x = 63,965.31/228.51
  6. Step 6: Final answer
    x = 279.92

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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.