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Finding the Fourth Proportional to 192.07, 287.56 and 159.27

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Solution

The fourth proportional to 192.07, 287.56 and 159.27 is: 238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.07 : 287.56 = 159.27 : x
  2. Step 2: Convert to fraction form
    192.07/287.56 = 159.27/x
  3. Step 3: Cross multiply
    192.07x = 287.56 × 159.27
  4. Step 4: Simplify right side
    192.07x = 45,799.68
  5. Step 5: Solve for x
    x = 45,799.68/192.07
  6. Step 6: Final answer
    x = 238.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.