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Finding the Fourth Proportional to 468.20, 702.26 and 159.94

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Solution

The fourth proportional to 468.20, 702.26 and 159.94 is: 239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.20 : 702.26 = 159.94 : x
  2. Step 2: Convert to fraction form
    468.20/702.26 = 159.94/x
  3. Step 3: Cross multiply
    468.20x = 702.26 × 159.94
  4. Step 4: Simplify right side
    468.20x = 112,319.46
  5. Step 5: Solve for x
    x = 112,319.46/468.20
  6. Step 6: Final answer
    x = 239.90

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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.