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Finding the Fourth Proportional to 319.26, 441.38 and 270.03

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Solution

The fourth proportional to 319.26, 441.38 and 270.03 is: 373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.26 : 441.38 = 270.03 : x
  2. Step 2: Convert to fraction form
    319.26/441.38 = 270.03/x
  3. Step 3: Cross multiply
    319.26x = 441.38 × 270.03
  4. Step 4: Simplify right side
    319.26x = 119,184.49
  5. Step 5: Solve for x
    x = 119,184.49/319.26
  6. Step 6: Final answer
    x = 373.31

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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.