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Finding the Fourth Proportional to 241.99, 334.36 and 215.53

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Solution

The fourth proportional to 241.99, 334.36 and 215.53 is: 297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.99 : 334.36 = 215.53 : x
  2. Step 2: Convert to fraction form
    241.99/334.36 = 215.53/x
  3. Step 3: Cross multiply
    241.99x = 334.36 × 215.53
  4. Step 4: Simplify right side
    241.99x = 72,064.61
  5. Step 5: Solve for x
    x = 72,064.61/241.99
  6. Step 6: Final answer
    x = 297.80

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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.