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Finding the Fourth Proportional to 468.15, 702.43 and 251.48

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Solution

The fourth proportional to 468.15, 702.43 and 251.48 is: 377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.15 : 702.43 = 251.48 : x
  2. Step 2: Convert to fraction form
    468.15/702.43 = 251.48/x
  3. Step 3: Cross multiply
    468.15x = 702.43 × 251.48
  4. Step 4: Simplify right side
    468.15x = 176,644.98
  5. Step 5: Solve for x
    x = 176,644.98/468.15
  6. Step 6: Final answer
    x = 377.32

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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.