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Finding the Fourth Proportional to 552.16, 828.30 and 308.88

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Solution

The fourth proportional to 552.16, 828.30 and 308.88 is: 463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.16 : 828.30 = 308.88 : x
  2. Step 2: Convert to fraction form
    552.16/828.30 = 308.88/x
  3. Step 3: Cross multiply
    552.16x = 828.30 × 308.88
  4. Step 4: Simplify right side
    552.16x = 255,845.30
  5. Step 5: Solve for x
    x = 255,845.30/552.16
  6. Step 6: Final answer
    x = 463.35

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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.