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Finding the Fourth Proportional to 470.11, 704.56 and 223.31

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Solution

The fourth proportional to 470.11, 704.56 and 223.31 is: 334.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.11 : 704.56 = 223.31 : x
  2. Step 2: Convert to fraction form
    470.11/704.56 = 223.31/x
  3. Step 3: Cross multiply
    470.11x = 704.56 × 223.31
  4. Step 4: Simplify right side
    470.11x = 157,330.65
  5. Step 5: Solve for x
    x = 157,330.65/470.11
  6. Step 6: Final answer
    x = 334.67

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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.