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Finding the Fourth Proportional to 552.60, 828.99 and 308.60

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Solution

The fourth proportional to 552.60, 828.99 and 308.60 is: 462.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.60 : 828.99 = 308.60 : x
  2. Step 2: Convert to fraction form
    552.60/828.99 = 308.60/x
  3. Step 3: Cross multiply
    552.60x = 828.99 × 308.60
  4. Step 4: Simplify right side
    552.60x = 255,826.31
  5. Step 5: Solve for x
    x = 255,826.31/552.60
  6. Step 6: Final answer
    x = 462.95

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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.