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Finding the Fourth Proportional to 207.97, 287.75 and 175.16

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Solution

The fourth proportional to 207.97, 287.75 and 175.16 is: 242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.97 : 287.75 = 175.16 : x
  2. Step 2: Convert to fraction form
    207.97/287.75 = 175.16/x
  3. Step 3: Cross multiply
    207.97x = 287.75 × 175.16
  4. Step 4: Simplify right side
    207.97x = 50,403.45
  5. Step 5: Solve for x
    x = 50,403.45/207.97
  6. Step 6: Final answer
    x = 242.36

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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.