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Finding the Fourth Proportional to 263.10, 359.86 and 258.85

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Solution

The fourth proportional to 263.10, 359.86 and 258.85 is: 354.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.10 : 359.86 = 258.85 : x
  2. Step 2: Convert to fraction form
    263.10/359.86 = 258.85/x
  3. Step 3: Cross multiply
    263.10x = 359.86 × 258.85
  4. Step 4: Simplify right side
    263.10x = 93,146.93
  5. Step 5: Solve for x
    x = 93,146.93/263.10
  6. Step 6: Final answer
    x = 354.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.