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Finding the Fourth Proportional to 536.02, 804.11 and 261.90

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Solution

The fourth proportional to 536.02, 804.11 and 261.90 is: 392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.02 : 804.11 = 261.90 : x
  2. Step 2: Convert to fraction form
    536.02/804.11 = 261.90/x
  3. Step 3: Cross multiply
    536.02x = 804.11 × 261.90
  4. Step 4: Simplify right side
    536.02x = 210,595.10
  5. Step 5: Solve for x
    x = 210,595.10/536.02
  6. Step 6: Final answer
    x = 392.89

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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.