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Finding the Fourth Proportional to 252.74, 347.73 and 245.45

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Solution

The fourth proportional to 252.74, 347.73 and 245.45 is: 337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.74 : 347.73 = 245.45 : x
  2. Step 2: Convert to fraction form
    252.74/347.73 = 245.45/x
  3. Step 3: Cross multiply
    252.74x = 347.73 × 245.45
  4. Step 4: Simplify right side
    252.74x = 85,348.59
  5. Step 5: Solve for x
    x = 85,348.59/252.74
  6. Step 6: Final answer
    x = 337.70

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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.