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Finding the Fourth Proportional to 484.54, 727.09 and 192.07

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Solution

The fourth proportional to 484.54, 727.09 and 192.07 is: 288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.54 : 727.09 = 192.07 : x
  2. Step 2: Convert to fraction form
    484.54/727.09 = 192.07/x
  3. Step 3: Cross multiply
    484.54x = 727.09 × 192.07
  4. Step 4: Simplify right side
    484.54x = 139,648.54
  5. Step 5: Solve for x
    x = 139,648.54/484.54
  6. Step 6: Final answer
    x = 288.21

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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.