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Finding the Fourth Proportional to 632.08, 872.28 and 352.34

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Solution

The fourth proportional to 632.08, 872.28 and 352.34 is: 486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.08 : 872.28 = 352.34 : x
  2. Step 2: Convert to fraction form
    632.08/872.28 = 352.34/x
  3. Step 3: Cross multiply
    632.08x = 872.28 × 352.34
  4. Step 4: Simplify right side
    632.08x = 307,339.14
  5. Step 5: Solve for x
    x = 307,339.14/632.08
  6. Step 6: Final answer
    x = 486.23

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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.