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Finding the Fourth Proportional to 220.25, 304.13 and 192.94

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Solution

The fourth proportional to 220.25, 304.13 and 192.94 is: 266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.25 : 304.13 = 192.94 : x
  2. Step 2: Convert to fraction form
    220.25/304.13 = 192.94/x
  3. Step 3: Cross multiply
    220.25x = 304.13 × 192.94
  4. Step 4: Simplify right side
    220.25x = 58,678.84
  5. Step 5: Solve for x
    x = 58,678.84/220.25
  6. Step 6: Final answer
    x = 266.42

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1.5x scale

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.