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Finding the Fourth Proportional to 484.92, 727.25 and 210.95

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Solution

The fourth proportional to 484.92, 727.25 and 210.95 is: 316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.92 : 727.25 = 210.95 : x
  2. Step 2: Convert to fraction form
    484.92/727.25 = 210.95/x
  3. Step 3: Cross multiply
    484.92x = 727.25 × 210.95
  4. Step 4: Simplify right side
    484.92x = 153,413.39
  5. Step 5: Solve for x
    x = 153,413.39/484.92
  6. Step 6: Final answer
    x = 316.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.