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Finding the Fourth Proportional to 288.05, 397.62 and 175.97

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Solution

The fourth proportional to 288.05, 397.62 and 175.97 is: 242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.05 : 397.62 = 175.97 : x
  2. Step 2: Convert to fraction form
    288.05/397.62 = 175.97/x
  3. Step 3: Cross multiply
    288.05x = 397.62 × 175.97
  4. Step 4: Simplify right side
    288.05x = 69,970.19
  5. Step 5: Solve for x
    x = 69,970.19/288.05
  6. Step 6: Final answer
    x = 242.91

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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.