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Finding the Fourth Proportional to 357.91, 536.94 and 141.49

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Solution

The fourth proportional to 357.91, 536.94 and 141.49 is: 212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.91 : 536.94 = 141.49 : x
  2. Step 2: Convert to fraction form
    357.91/536.94 = 141.49/x
  3. Step 3: Cross multiply
    357.91x = 536.94 × 141.49
  4. Step 4: Simplify right side
    357.91x = 75,968.25
  5. Step 5: Solve for x
    x = 75,968.25/357.91
  6. Step 6: Final answer
    x = 212.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.