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Finding the Fourth Proportional to 186.16, 258.08 and 176.40

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Solution

The fourth proportional to 186.16, 258.08 and 176.40 is: 244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.16 : 258.08 = 176.40 : x
  2. Step 2: Convert to fraction form
    186.16/258.08 = 176.40/x
  3. Step 3: Cross multiply
    186.16x = 258.08 × 176.40
  4. Step 4: Simplify right side
    186.16x = 45,525.31
  5. Step 5: Solve for x
    x = 45,525.31/186.16
  6. Step 6: Final answer
    x = 244.55

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.