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Finding the Fourth Proportional to 265.23, 365.95 and 160.30

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Solution

The fourth proportional to 265.23, 365.95 and 160.30 is: 221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.23 : 365.95 = 160.30 : x
  2. Step 2: Convert to fraction form
    265.23/365.95 = 160.30/x
  3. Step 3: Cross multiply
    265.23x = 365.95 × 160.30
  4. Step 4: Simplify right side
    265.23x = 58,659.15
  5. Step 5: Solve for x
    x = 58,659.15/265.23
  6. Step 6: Final answer
    x = 221.16

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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.