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Finding the Fourth Proportional to 258.70, 385.60 and 244.12

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Solution

The fourth proportional to 258.70, 385.60 and 244.12 is: 363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258.70 : 385.60 = 244.12 : x
  2. Step 2: Convert to fraction form
    258.70/385.60 = 244.12/x
  3. Step 3: Cross multiply
    258.70x = 385.60 × 244.12
  4. Step 4: Simplify right side
    258.70x = 94,132.67
  5. Step 5: Solve for x
    x = 94,132.67/258.70
  6. Step 6: Final answer
    x = 363.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.