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Finding the Fourth Proportional to 632.75, 873.20 and 352.99

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Solution

The fourth proportional to 632.75, 873.20 and 352.99 is: 487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.75 : 873.20 = 352.99 : x
  2. Step 2: Convert to fraction form
    632.75/873.20 = 352.99/x
  3. Step 3: Cross multiply
    632.75x = 873.20 × 352.99
  4. Step 4: Simplify right side
    632.75x = 308,230.19
  5. Step 5: Solve for x
    x = 308,230.19/632.75
  6. Step 6: Final answer
    x = 487.13

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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.