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Finding the Fourth Proportional to 258.73, 385.40 and 244.75

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Solution

The fourth proportional to 258.73, 385.40 and 244.75 is: 364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    258.73 : 385.40 = 244.75 : x
  2. Step 2: Convert to fraction form
    258.73/385.40 = 244.75/x
  3. Step 3: Cross multiply
    258.73x = 385.40 × 244.75
  4. Step 4: Simplify right side
    258.73x = 94,326.65
  5. Step 5: Solve for x
    x = 94,326.65/258.73
  6. Step 6: Final answer
    x = 364.58

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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.