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Finding the Fourth Proportional to 344.20, 475.18 and 265.35

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Solution

The fourth proportional to 344.20, 475.18 and 265.35 is: 366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.20 : 475.18 = 265.35 : x
  2. Step 2: Convert to fraction form
    344.20/475.18 = 265.35/x
  3. Step 3: Cross multiply
    344.20x = 475.18 × 265.35
  4. Step 4: Simplify right side
    344.20x = 126,085.31
  5. Step 5: Solve for x
    x = 126,085.31/344.20
  6. Step 6: Final answer
    x = 366.31

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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.