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Finding the Fourth Proportional to 192.66, 265.74 and 137.46

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Solution

The fourth proportional to 192.66, 265.74 and 137.46 is: 189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.66 : 265.74 = 137.46 : x
  2. Step 2: Convert to fraction form
    192.66/265.74 = 137.46/x
  3. Step 3: Cross multiply
    192.66x = 265.74 × 137.46
  4. Step 4: Simplify right side
    192.66x = 36,528.62
  5. Step 5: Solve for x
    x = 36,528.62/192.66
  6. Step 6: Final answer
    x = 189.60

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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.