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Finding the Fourth Proportional to 277.17, 382.57 and 189.84

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Solution

The fourth proportional to 277.17, 382.57 and 189.84 is: 262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.17 : 382.57 = 189.84 : x
  2. Step 2: Convert to fraction form
    277.17/382.57 = 189.84/x
  3. Step 3: Cross multiply
    277.17x = 382.57 × 189.84
  4. Step 4: Simplify right side
    277.17x = 72,629.12
  5. Step 5: Solve for x
    x = 72,629.12/277.17
  6. Step 6: Final answer
    x = 262.04

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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.