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Finding the Fourth Proportional to 470.09, 703.99 and 323.43

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Solution

The fourth proportional to 470.09, 703.99 and 323.43 is: 484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.09 : 703.99 = 323.43 : x
  2. Step 2: Convert to fraction form
    470.09/703.99 = 323.43/x
  3. Step 3: Cross multiply
    470.09x = 703.99 × 323.43
  4. Step 4: Simplify right side
    470.09x = 227,693.42
  5. Step 5: Solve for x
    x = 227,693.42/470.09
  6. Step 6: Final answer
    x = 484.36

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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.