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Finding the Fourth Proportional to 631.26, 945.27 and 356.94

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Solution

The fourth proportional to 631.26, 945.27 and 356.94 is: 534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.26 : 945.27 = 356.94 : x
  2. Step 2: Convert to fraction form
    631.26/945.27 = 356.94/x
  3. Step 3: Cross multiply
    631.26x = 945.27 × 356.94
  4. Step 4: Simplify right side
    631.26x = 337,404.67
  5. Step 5: Solve for x
    x = 337,404.67/631.26
  6. Step 6: Final answer
    x = 534.49

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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.