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Finding the Fourth Proportional to 219.70, 303.10 and 192.06

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Solution

The fourth proportional to 219.70, 303.10 and 192.06 is: 264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.70 : 303.10 = 192.06 : x
  2. Step 2: Convert to fraction form
    219.70/303.10 = 192.06/x
  3. Step 3: Cross multiply
    219.70x = 303.10 × 192.06
  4. Step 4: Simplify right side
    219.70x = 58,213.39
  5. Step 5: Solve for x
    x = 58,213.39/219.70
  6. Step 6: Final answer
    x = 264.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.