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Finding the Fourth Proportional to 632.28, 872.58 and 352.53

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Solution

The fourth proportional to 632.28, 872.58 and 352.53 is: 486.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.28 : 872.58 = 352.53 : x
  2. Step 2: Convert to fraction form
    632.28/872.58 = 352.53/x
  3. Step 3: Cross multiply
    632.28x = 872.58 × 352.53
  4. Step 4: Simplify right side
    632.28x = 307,610.63
  5. Step 5: Solve for x
    x = 307,610.63/632.28
  6. Step 6: Final answer
    x = 486.51

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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.