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Finding the Fourth Proportional to 260.61, 358.58 and 254.45

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Solution

The fourth proportional to 260.61, 358.58 and 254.45 is: 350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.61 : 358.58 = 254.45 : x
  2. Step 2: Convert to fraction form
    260.61/358.58 = 254.45/x
  3. Step 3: Cross multiply
    260.61x = 358.58 × 254.45
  4. Step 4: Simplify right side
    260.61x = 91,237.62
  5. Step 5: Solve for x
    x = 91,237.62/260.61
  6. Step 6: Final answer
    x = 350.09

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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.