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Finding the Fourth Proportional to 259.07, 386.59 and 252.89

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Solution

The fourth proportional to 259.07, 386.59 and 252.89 is: 377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.07 : 386.59 = 252.89 : x
  2. Step 2: Convert to fraction form
    259.07/386.59 = 252.89/x
  3. Step 3: Cross multiply
    259.07x = 386.59 × 252.89
  4. Step 4: Simplify right side
    259.07x = 97,764.75
  5. Step 5: Solve for x
    x = 97,764.75/259.07
  6. Step 6: Final answer
    x = 377.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.