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Finding the Fourth Proportional to 468.66, 702.99 and 126.66

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Solution

The fourth proportional to 468.66, 702.99 and 126.66 is: 189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.66 : 702.99 = 126.66 : x
  2. Step 2: Convert to fraction form
    468.66/702.99 = 126.66/x
  3. Step 3: Cross multiply
    468.66x = 702.99 × 126.66
  4. Step 4: Simplify right side
    468.66x = 89,037.60
  5. Step 5: Solve for x
    x = 89,037.60/468.66
  6. Step 6: Final answer
    x = 189.98

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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.