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Finding the Fourth Proportional to 536.55, 804.75 and 189.89

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Solution

The fourth proportional to 536.55, 804.75 and 189.89 is: 284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.55 : 804.75 = 189.89 : x
  2. Step 2: Convert to fraction form
    536.55/804.75 = 189.89/x
  3. Step 3: Cross multiply
    536.55x = 804.75 × 189.89
  4. Step 4: Simplify right side
    536.55x = 152,813.98
  5. Step 5: Solve for x
    x = 152,813.98/536.55
  6. Step 6: Final answer
    x = 284.81

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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.