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Finding the Fourth Proportional to 259.73, 357.37 and 253.57

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Solution

The fourth proportional to 259.73, 357.37 and 253.57 is: 348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.73 : 357.37 = 253.57 : x
  2. Step 2: Convert to fraction form
    259.73/357.37 = 253.57/x
  3. Step 3: Cross multiply
    259.73x = 357.37 × 253.57
  4. Step 4: Simplify right side
    259.73x = 90,618.31
  5. Step 5: Solve for x
    x = 90,618.31/259.73
  6. Step 6: Final answer
    x = 348.89

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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.