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Finding the Fourth Proportional to 471.69, 706.10 and 349.65

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Solution

The fourth proportional to 471.69, 706.10 and 349.65 is: 523.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.69 : 706.10 = 349.65 : x
  2. Step 2: Convert to fraction form
    471.69/706.10 = 349.65/x
  3. Step 3: Cross multiply
    471.69x = 706.10 × 349.65
  4. Step 4: Simplify right side
    471.69x = 246,886.12
  5. Step 5: Solve for x
    x = 246,886.12/471.69
  6. Step 6: Final answer
    x = 523.41

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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.