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Finding the Fourth Proportional to 468.75, 702.45 and 194.70

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Solution

The fourth proportional to 468.75, 702.45 and 194.70 is: 291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.75 : 702.45 = 194.70 : x
  2. Step 2: Convert to fraction form
    468.75/702.45 = 194.70/x
  3. Step 3: Cross multiply
    468.75x = 702.45 × 194.70
  4. Step 4: Simplify right side
    468.75x = 136,767.02
  5. Step 5: Solve for x
    x = 136,767.02/468.75
  6. Step 6: Final answer
    x = 291.77

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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.