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Finding the Fourth Proportional to 461.79, 692.87 and 173.43

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Solution

The fourth proportional to 461.79, 692.87 and 173.43 is: 260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.79 : 692.87 = 173.43 : x
  2. Step 2: Convert to fraction form
    461.79/692.87 = 173.43/x
  3. Step 3: Cross multiply
    461.79x = 692.87 × 173.43
  4. Step 4: Simplify right side
    461.79x = 120,163.58
  5. Step 5: Solve for x
    x = 120,163.58/461.79
  6. Step 6: Final answer
    x = 260.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.