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Finding the Fourth Proportional to 629.89, 945.02 and 264.49

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Solution

The fourth proportional to 629.89, 945.02 and 264.49 is: 396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.89 : 945.02 = 264.49 : x
  2. Step 2: Convert to fraction form
    629.89/945.02 = 264.49/x
  3. Step 3: Cross multiply
    629.89x = 945.02 × 264.49
  4. Step 4: Simplify right side
    629.89x = 249,947.02
  5. Step 5: Solve for x
    x = 249,947.02/629.89
  6. Step 6: Final answer
    x = 396.81

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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.