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Finding the Fourth Proportional to 228.70, 341.44 and 192.25

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Solution

The fourth proportional to 228.70, 341.44 and 192.25 is: 287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.70 : 341.44 = 192.25 : x
  2. Step 2: Convert to fraction form
    228.70/341.44 = 192.25/x
  3. Step 3: Cross multiply
    228.70x = 341.44 × 192.25
  4. Step 4: Simplify right side
    228.70x = 65,640.13
  5. Step 5: Solve for x
    x = 65,640.13/228.70
  6. Step 6: Final answer
    x = 287.02

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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.