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Finding the Fourth Proportional to 281.24, 387.16 and 250.10

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Solution

The fourth proportional to 281.24, 387.16 and 250.10 is: 344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281.24 : 387.16 = 250.10 : x
  2. Step 2: Convert to fraction form
    281.24/387.16 = 250.10/x
  3. Step 3: Cross multiply
    281.24x = 387.16 × 250.10
  4. Step 4: Simplify right side
    281.24x = 96,829.06
  5. Step 5: Solve for x
    x = 96,829.06/281.24
  6. Step 6: Final answer
    x = 344.30

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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.