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Finding the Fourth Proportional to 468.13, 702.22 and 155.79

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Solution

The fourth proportional to 468.13, 702.22 and 155.79 is: 233.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.13 : 702.22 = 155.79 : x
  2. Step 2: Convert to fraction form
    468.13/702.22 = 155.79/x
  3. Step 3: Cross multiply
    468.13x = 702.22 × 155.79
  4. Step 4: Simplify right side
    468.13x = 109,398.46
  5. Step 5: Solve for x
    x = 109,398.46/468.13
  6. Step 6: Final answer
    x = 233.69

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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.