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Finding the Fourth Proportional to 632.09, 872.26 and 352.34

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Solution

The fourth proportional to 632.09, 872.26 and 352.34 is: 486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.09 : 872.26 = 352.34 : x
  2. Step 2: Convert to fraction form
    632.09/872.26 = 352.34/x
  3. Step 3: Cross multiply
    632.09x = 872.26 × 352.34
  4. Step 4: Simplify right side
    632.09x = 307,332.09
  5. Step 5: Solve for x
    x = 307,332.09/632.09
  6. Step 6: Final answer
    x = 486.22

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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.