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Finding the Fourth Proportional to 473.85, 709.56 and 329.67

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Solution

The fourth proportional to 473.85, 709.56 and 329.67 is: 493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.85 : 709.56 = 329.67 : x
  2. Step 2: Convert to fraction form
    473.85/709.56 = 329.67/x
  3. Step 3: Cross multiply
    473.85x = 709.56 × 329.67
  4. Step 4: Simplify right side
    473.85x = 233,920.65
  5. Step 5: Solve for x
    x = 233,920.65/473.85
  6. Step 6: Final answer
    x = 493.66

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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.