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Finding the Fourth Proportional to 260.04, 357.81 and 253.89

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Solution

The fourth proportional to 260.04, 357.81 and 253.89 is: 349.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.04 : 357.81 = 253.89 : x
  2. Step 2: Convert to fraction form
    260.04/357.81 = 253.89/x
  3. Step 3: Cross multiply
    260.04x = 357.81 × 253.89
  4. Step 4: Simplify right side
    260.04x = 90,842.09
  5. Step 5: Solve for x
    x = 90,842.09/260.04
  6. Step 6: Final answer
    x = 349.34

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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.