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Finding the Fourth Proportional to 471.04, 649.76 and 323.42

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Solution

The fourth proportional to 471.04, 649.76 and 323.42 is: 446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.04 : 649.76 = 323.42 : x
  2. Step 2: Convert to fraction form
    471.04/649.76 = 323.42/x
  3. Step 3: Cross multiply
    471.04x = 649.76 × 323.42
  4. Step 4: Simplify right side
    471.04x = 210,145.38
  5. Step 5: Solve for x
    x = 210,145.38/471.04
  6. Step 6: Final answer
    x = 446.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.