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Finding the Fourth Proportional to 633.18, 873.27 and 486.17

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Solution

The fourth proportional to 633.18, 873.27 and 486.17 is: 670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.18 : 873.27 = 486.17 : x
  2. Step 2: Convert to fraction form
    633.18/873.27 = 486.17/x
  3. Step 3: Cross multiply
    633.18x = 873.27 × 486.17
  4. Step 4: Simplify right side
    633.18x = 424,553.31
  5. Step 5: Solve for x
    x = 424,553.31/633.18
  6. Step 6: Final answer
    x = 670.51

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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.