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Finding the Fourth Proportional to 265.19, 365.90 and 166.91

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Solution

The fourth proportional to 265.19, 365.90 and 166.91 is: 230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.19 : 365.90 = 166.91 : x
  2. Step 2: Convert to fraction form
    265.19/365.90 = 166.91/x
  3. Step 3: Cross multiply
    265.19x = 365.90 × 166.91
  4. Step 4: Simplify right side
    265.19x = 61,069.70
  5. Step 5: Solve for x
    x = 61,069.70/265.19
  6. Step 6: Final answer
    x = 230.29

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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.