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Finding the Fourth Proportional to 632.36, 942.13 and 629.80

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Solution

The fourth proportional to 632.36, 942.13 and 629.80 is: 938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.36 : 942.13 = 629.80 : x
  2. Step 2: Convert to fraction form
    632.36/942.13 = 629.80/x
  3. Step 3: Cross multiply
    632.36x = 942.13 × 629.80
  4. Step 4: Simplify right side
    632.36x = 593,353.47
  5. Step 5: Solve for x
    x = 593,353.47/632.36
  6. Step 6: Final answer
    x = 938.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.