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Finding the Fourth Proportional to 462.40, 692.39 and 298.03

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Solution

The fourth proportional to 462.40, 692.39 and 298.03 is: 446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.40 : 692.39 = 298.03 : x
  2. Step 2: Convert to fraction form
    462.40/692.39 = 298.03/x
  3. Step 3: Cross multiply
    462.40x = 692.39 × 298.03
  4. Step 4: Simplify right side
    462.40x = 206,352.99
  5. Step 5: Solve for x
    x = 206,352.99/462.40
  6. Step 6: Final answer
    x = 446.27

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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.