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Finding the Fourth Proportional to 536.28, 804.36 and 171.12

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Solution

The fourth proportional to 536.28, 804.36 and 171.12 is: 256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.28 : 804.36 = 171.12 : x
  2. Step 2: Convert to fraction form
    536.28/804.36 = 171.12/x
  3. Step 3: Cross multiply
    536.28x = 804.36 × 171.12
  4. Step 4: Simplify right side
    536.28x = 137,642.08
  5. Step 5: Solve for x
    x = 137,642.08/536.28
  6. Step 6: Final answer
    x = 256.66

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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.