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Finding the Fourth Proportional to 241.33, 359.72 and 215.16

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Solution

The fourth proportional to 241.33, 359.72 and 215.16 is: 320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.33 : 359.72 = 215.16 : x
  2. Step 2: Convert to fraction form
    241.33/359.72 = 215.16/x
  3. Step 3: Cross multiply
    241.33x = 359.72 × 215.16
  4. Step 4: Simplify right side
    241.33x = 77,397.36
  5. Step 5: Solve for x
    x = 77,397.36/241.33
  6. Step 6: Final answer
    x = 320.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.