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Finding the Fourth Proportional to 286.52, 395.58 and 267.16

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Solution

The fourth proportional to 286.52, 395.58 and 267.16 is: 368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.52 : 395.58 = 267.16 : x
  2. Step 2: Convert to fraction form
    286.52/395.58 = 267.16/x
  3. Step 3: Cross multiply
    286.52x = 395.58 × 267.16
  4. Step 4: Simplify right side
    286.52x = 105,683.15
  5. Step 5: Solve for x
    x = 105,683.15/286.52
  6. Step 6: Final answer
    x = 368.85

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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.