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Finding the Fourth Proportional to 277.67, 383.18 and 167.18

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Solution

The fourth proportional to 277.67, 383.18 and 167.18 is: 230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.67 : 383.18 = 167.18 : x
  2. Step 2: Convert to fraction form
    277.67/383.18 = 167.18/x
  3. Step 3: Cross multiply
    277.67x = 383.18 × 167.18
  4. Step 4: Simplify right side
    277.67x = 64,057.28
  5. Step 5: Solve for x
    x = 64,057.28/277.67
  6. Step 6: Final answer
    x = 230.69

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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.