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Finding the Fourth Proportional to 536.22, 804.42 and 211.50

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Solution

The fourth proportional to 536.22, 804.42 and 211.50 is: 317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.22 : 804.42 = 211.50 : x
  2. Step 2: Convert to fraction form
    536.22/804.42 = 211.50/x
  3. Step 3: Cross multiply
    536.22x = 804.42 × 211.50
  4. Step 4: Simplify right side
    536.22x = 170,134.83
  5. Step 5: Solve for x
    x = 170,134.83/536.22
  6. Step 6: Final answer
    x = 317.29

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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.