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Finding the Fourth Proportional to 186.06, 279.34 and 117.37

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Solution

The fourth proportional to 186.06, 279.34 and 117.37 is: 176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.06 : 279.34 = 117.37 : x
  2. Step 2: Convert to fraction form
    186.06/279.34 = 117.37/x
  3. Step 3: Cross multiply
    186.06x = 279.34 × 117.37
  4. Step 4: Simplify right side
    186.06x = 32,786.14
  5. Step 5: Solve for x
    x = 32,786.14/186.06
  6. Step 6: Final answer
    x = 176.21

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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.