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Finding the Fourth Proportional to 265.32, 365.58 and 208.89

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Solution

The fourth proportional to 265.32, 365.58 and 208.89 is: 287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.32 : 365.58 = 208.89 : x
  2. Step 2: Convert to fraction form
    265.32/365.58 = 208.89/x
  3. Step 3: Cross multiply
    265.32x = 365.58 × 208.89
  4. Step 4: Simplify right side
    265.32x = 76,366.01
  5. Step 5: Solve for x
    x = 76,366.01/265.32
  6. Step 6: Final answer
    x = 287.83

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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.