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Finding the Fourth Proportional to 265.04, 365.80 and 161.60

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Solution

The fourth proportional to 265.04, 365.80 and 161.60 is: 223.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.04 : 365.80 = 161.60 : x
  2. Step 2: Convert to fraction form
    265.04/365.80 = 161.60/x
  3. Step 3: Cross multiply
    265.04x = 365.80 × 161.60
  4. Step 4: Simplify right side
    265.04x = 59,113.28
  5. Step 5: Solve for x
    x = 59,113.28/265.04
  6. Step 6: Final answer
    x = 223.04

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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.