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Finding the Fourth Proportional to 485.27, 727.97 and 160.66

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Solution

The fourth proportional to 485.27, 727.97 and 160.66 is: 241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485.27 : 727.97 = 160.66 : x
  2. Step 2: Convert to fraction form
    485.27/727.97 = 160.66/x
  3. Step 3: Cross multiply
    485.27x = 727.97 × 160.66
  4. Step 4: Simplify right side
    485.27x = 116,955.66
  5. Step 5: Solve for x
    x = 116,955.66/485.27
  6. Step 6: Final answer
    x = 241.01

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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.