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Finding the Fourth Proportional to 186.72, 257.79 and 175.10

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Solution

The fourth proportional to 186.72, 257.79 and 175.10 is: 241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.72 : 257.79 = 175.10 : x
  2. Step 2: Convert to fraction form
    186.72/257.79 = 175.10/x
  3. Step 3: Cross multiply
    186.72x = 257.79 × 175.10
  4. Step 4: Simplify right side
    186.72x = 45,139.03
  5. Step 5: Solve for x
    x = 45,139.03/186.72
  6. Step 6: Final answer
    x = 241.75

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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.