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Finding the Fourth Proportional to 259.91, 360.48 and 251.16

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Solution

The fourth proportional to 259.91, 360.48 and 251.16 is: 348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.91 : 360.48 = 251.16 : x
  2. Step 2: Convert to fraction form
    259.91/360.48 = 251.16/x
  3. Step 3: Cross multiply
    259.91x = 360.48 × 251.16
  4. Step 4: Simplify right side
    259.91x = 90,538.16
  5. Step 5: Solve for x
    x = 90,538.16/259.91
  6. Step 6: Final answer
    x = 348.35

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.