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Finding the Fourth Proportional to 470.07, 704.34 and 324.81

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Solution

The fourth proportional to 470.07, 704.34 and 324.81 is: 486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.07 : 704.34 = 324.81 : x
  2. Step 2: Convert to fraction form
    470.07/704.34 = 324.81/x
  3. Step 3: Cross multiply
    470.07x = 704.34 × 324.81
  4. Step 4: Simplify right side
    470.07x = 228,776.68
  5. Step 5: Solve for x
    x = 228,776.68/470.07
  6. Step 6: Final answer
    x = 486.69

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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.