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Finding the Fourth Proportional to 286.77, 396.51 and 250.32

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Solution

The fourth proportional to 286.77, 396.51 and 250.32 is: 346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.77 : 396.51 = 250.32 : x
  2. Step 2: Convert to fraction form
    286.77/396.51 = 250.32/x
  3. Step 3: Cross multiply
    286.77x = 396.51 × 250.32
  4. Step 4: Simplify right side
    286.77x = 99,254.38
  5. Step 5: Solve for x
    x = 99,254.38/286.77
  6. Step 6: Final answer
    x = 346.11

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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.