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Finding the Fourth Proportional to 536.54, 804.08 and 398.50

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Solution

The fourth proportional to 536.54, 804.08 and 398.50 is: 597.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.54 : 804.08 = 398.50 : x
  2. Step 2: Convert to fraction form
    536.54/804.08 = 398.50/x
  3. Step 3: Cross multiply
    536.54x = 804.08 × 398.50
  4. Step 4: Simplify right side
    536.54x = 320,425.88
  5. Step 5: Solve for x
    x = 320,425.88/536.54
  6. Step 6: Final answer
    x = 597.21

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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.