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Finding the Fourth Proportional to 536.25, 804.38 and 211.71

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Solution

The fourth proportional to 536.25, 804.38 and 211.71 is: 317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.25 : 804.38 = 211.71 : x
  2. Step 2: Convert to fraction form
    536.25/804.38 = 211.71/x
  3. Step 3: Cross multiply
    536.25x = 804.38 × 211.71
  4. Step 4: Simplify right side
    536.25x = 170,294.23
  5. Step 5: Solve for x
    x = 170,294.23/536.25
  6. Step 6: Final answer
    x = 317.57

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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.