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Finding the Fourth Proportional to 192.03, 264.90 and 126.51

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Solution

The fourth proportional to 192.03, 264.90 and 126.51 is: 174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.03 : 264.90 = 126.51 : x
  2. Step 2: Convert to fraction form
    192.03/264.90 = 126.51/x
  3. Step 3: Cross multiply
    192.03x = 264.90 × 126.51
  4. Step 4: Simplify right side
    192.03x = 33,512.50
  5. Step 5: Solve for x
    x = 33,512.50/192.03
  6. Step 6: Final answer
    x = 174.52

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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.