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Finding the Fourth Proportional to 468.87, 702.52 and 221.82

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Solution

The fourth proportional to 468.87, 702.52 and 221.82 is: 332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.87 : 702.52 = 221.82 : x
  2. Step 2: Convert to fraction form
    468.87/702.52 = 221.82/x
  3. Step 3: Cross multiply
    468.87x = 702.52 × 221.82
  4. Step 4: Simplify right side
    468.87x = 155,832.99
  5. Step 5: Solve for x
    x = 155,832.99/468.87
  6. Step 6: Final answer
    x = 332.36

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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.