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Finding the Fourth Proportional to 468.45, 702.18 and 194.49

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Solution

The fourth proportional to 468.45, 702.18 and 194.49 is: 291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.45 : 702.18 = 194.49 : x
  2. Step 2: Convert to fraction form
    468.45/702.18 = 194.49/x
  3. Step 3: Cross multiply
    468.45x = 702.18 × 194.49
  4. Step 4: Simplify right side
    468.45x = 136,566.99
  5. Step 5: Solve for x
    x = 136,566.99/468.45
  6. Step 6: Final answer
    x = 291.53

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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.