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Finding the Fourth Proportional to 260.89, 359.04 and 243.07

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Solution

The fourth proportional to 260.89, 359.04 and 243.07 is: 334.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.89 : 359.04 = 243.07 : x
  2. Step 2: Convert to fraction form
    260.89/359.04 = 243.07/x
  3. Step 3: Cross multiply
    260.89x = 359.04 × 243.07
  4. Step 4: Simplify right side
    260.89x = 87,271.85
  5. Step 5: Solve for x
    x = 87,271.85/260.89
  6. Step 6: Final answer
    x = 334.52

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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.