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Finding the Fourth Proportional to 488.60, 733.16 and 402.69

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Solution

The fourth proportional to 488.60, 733.16 and 402.69 is: 604.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.60 : 733.16 = 402.69 : x
  2. Step 2: Convert to fraction form
    488.60/733.16 = 402.69/x
  3. Step 3: Cross multiply
    488.60x = 733.16 × 402.69
  4. Step 4: Simplify right side
    488.60x = 295,237.21
  5. Step 5: Solve for x
    x = 295,237.21/488.60
  6. Step 6: Final answer
    x = 604.26

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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.