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Finding the Fourth Proportional to 287.06, 395.82 and 250.16

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Solution

The fourth proportional to 287.06, 395.82 and 250.16 is: 344.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287.06 : 395.82 = 250.16 : x
  2. Step 2: Convert to fraction form
    287.06/395.82 = 250.16/x
  3. Step 3: Cross multiply
    287.06x = 395.82 × 250.16
  4. Step 4: Simplify right side
    287.06x = 99,016.35
  5. Step 5: Solve for x
    x = 99,016.35/287.06
  6. Step 6: Final answer
    x = 344.94

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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.