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Finding the Fourth Proportional to 468.78, 702.57 and 224.94

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Solution

The fourth proportional to 468.78, 702.57 and 224.94 is: 337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.78 : 702.57 = 224.94 : x
  2. Step 2: Convert to fraction form
    468.78/702.57 = 224.94/x
  3. Step 3: Cross multiply
    468.78x = 702.57 × 224.94
  4. Step 4: Simplify right side
    468.78x = 158,036.10
  5. Step 5: Solve for x
    x = 158,036.10/468.78
  6. Step 6: Final answer
    x = 337.12

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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.