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Finding the Fourth Proportional to 357.73, 536.05 and 211.57

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Solution

The fourth proportional to 357.73, 536.05 and 211.57 is: 317.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.73 : 536.05 = 211.57 : x
  2. Step 2: Convert to fraction form
    357.73/536.05 = 211.57/x
  3. Step 3: Cross multiply
    357.73x = 536.05 × 211.57
  4. Step 4: Simplify right side
    357.73x = 113,412.10
  5. Step 5: Solve for x
    x = 113,412.10/357.73
  6. Step 6: Final answer
    x = 317.03

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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.