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Finding the Fourth Proportional to 632.37, 872.39 and 370.28

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Solution

The fourth proportional to 632.37, 872.39 and 370.28 is: 510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.37 : 872.39 = 370.28 : x
  2. Step 2: Convert to fraction form
    632.37/872.39 = 370.28/x
  3. Step 3: Cross multiply
    632.37x = 872.39 × 370.28
  4. Step 4: Simplify right side
    632.37x = 323,022.36
  5. Step 5: Solve for x
    x = 323,022.36/632.37
  6. Step 6: Final answer
    x = 510.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.