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Finding the Fourth Proportional to 461.52, 692.28 and 330.75

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Solution

The fourth proportional to 461.52, 692.28 and 330.75 is: 496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.52 : 692.28 = 330.75 : x
  2. Step 2: Convert to fraction form
    461.52/692.28 = 330.75/x
  3. Step 3: Cross multiply
    461.52x = 692.28 × 330.75
  4. Step 4: Simplify right side
    461.52x = 228,971.61
  5. Step 5: Solve for x
    x = 228,971.61/461.52
  6. Step 6: Final answer
    x = 496.13

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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.