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Finding the Fourth Proportional to 468.39, 702.74 and 306.39

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Solution

The fourth proportional to 468.39, 702.74 and 306.39 is: 459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.39 : 702.74 = 306.39 : x
  2. Step 2: Convert to fraction form
    468.39/702.74 = 306.39/x
  3. Step 3: Cross multiply
    468.39x = 702.74 × 306.39
  4. Step 4: Simplify right side
    468.39x = 215,310.98
  5. Step 5: Solve for x
    x = 215,310.98/468.39
  6. Step 6: Final answer
    x = 459.68

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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.