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Finding the Fourth Proportional to 228.03, 343.70 and 187.93

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Solution

The fourth proportional to 228.03, 343.70 and 187.93 is: 283.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.03 : 343.70 = 187.93 : x
  2. Step 2: Convert to fraction form
    228.03/343.70 = 187.93/x
  3. Step 3: Cross multiply
    228.03x = 343.70 × 187.93
  4. Step 4: Simplify right side
    228.03x = 64,591.54
  5. Step 5: Solve for x
    x = 64,591.54/228.03
  6. Step 6: Final answer
    x = 283.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.