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Finding the Fourth Proportional to 253.98, 347.95 and 244.63

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Solution

The fourth proportional to 253.98, 347.95 and 244.63 is: 335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.98 : 347.95 = 244.63 : x
  2. Step 2: Convert to fraction form
    253.98/347.95 = 244.63/x
  3. Step 3: Cross multiply
    253.98x = 347.95 × 244.63
  4. Step 4: Simplify right side
    253.98x = 85,119.75
  5. Step 5: Solve for x
    x = 85,119.75/253.98
  6. Step 6: Final answer
    x = 335.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.