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Finding the Fourth Proportional to 355.25, 489.77 and 237.23

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Solution

The fourth proportional to 355.25, 489.77 and 237.23 is: 327.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.25 : 489.77 = 237.23 : x
  2. Step 2: Convert to fraction form
    355.25/489.77 = 237.23/x
  3. Step 3: Cross multiply
    355.25x = 489.77 × 237.23
  4. Step 4: Simplify right side
    355.25x = 116,186.95
  5. Step 5: Solve for x
    x = 116,186.95/355.25
  6. Step 6: Final answer
    x = 327.06

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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.