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Finding the Fourth Proportional to 535.43, 804.18 and 475.09

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Solution

The fourth proportional to 535.43, 804.18 and 475.09 is: 713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.43 : 804.18 = 475.09 : x
  2. Step 2: Convert to fraction form
    535.43/804.18 = 475.09/x
  3. Step 3: Cross multiply
    535.43x = 804.18 × 475.09
  4. Step 4: Simplify right side
    535.43x = 382,057.88
  5. Step 5: Solve for x
    x = 382,057.88/535.43
  6. Step 6: Final answer
    x = 713.55

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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.