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Finding the Fourth Proportional to 192.08, 264.27 and 186.72

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Solution

The fourth proportional to 192.08, 264.27 and 186.72 is: 256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.08 : 264.27 = 186.72 : x
  2. Step 2: Convert to fraction form
    192.08/264.27 = 186.72/x
  3. Step 3: Cross multiply
    192.08x = 264.27 × 186.72
  4. Step 4: Simplify right side
    192.08x = 49,344.49
  5. Step 5: Solve for x
    x = 49,344.49/192.08
  6. Step 6: Final answer
    x = 256.90

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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.