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Finding the Fourth Proportional to 471.27, 708.42 and 437.45

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Solution

The fourth proportional to 471.27, 708.42 and 437.45 is: 657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.27 : 708.42 = 437.45 : x
  2. Step 2: Convert to fraction form
    471.27/708.42 = 437.45/x
  3. Step 3: Cross multiply
    471.27x = 708.42 × 437.45
  4. Step 4: Simplify right side
    471.27x = 309,898.33
  5. Step 5: Solve for x
    x = 309,898.33/471.27
  6. Step 6: Final answer
    x = 657.58

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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.