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Finding the Fourth Proportional to 462.24, 692.82 and 245.76

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Solution

The fourth proportional to 462.24, 692.82 and 245.76 is: 368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.24 : 692.82 = 245.76 : x
  2. Step 2: Convert to fraction form
    462.24/692.82 = 245.76/x
  3. Step 3: Cross multiply
    462.24x = 692.82 × 245.76
  4. Step 4: Simplify right side
    462.24x = 170,267.44
  5. Step 5: Solve for x
    x = 170,267.44/462.24
  6. Step 6: Final answer
    x = 368.35

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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.