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Finding the Fourth Proportional to 632.22, 872.24 and 370.20

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Solution

The fourth proportional to 632.22, 872.24 and 370.20 is: 510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.22 : 872.24 = 370.20 : x
  2. Step 2: Convert to fraction form
    632.22/872.24 = 370.20/x
  3. Step 3: Cross multiply
    632.22x = 872.24 × 370.20
  4. Step 4: Simplify right side
    632.22x = 322,903.25
  5. Step 5: Solve for x
    x = 322,903.25/632.22
  6. Step 6: Final answer
    x = 510.75

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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.