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Finding the Fourth Proportional to 552.15, 828.05 and 274.37

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Solution

The fourth proportional to 552.15, 828.05 and 274.37 is: 411.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.15 : 828.05 = 274.37 : x
  2. Step 2: Convert to fraction form
    552.15/828.05 = 274.37/x
  3. Step 3: Cross multiply
    552.15x = 828.05 × 274.37
  4. Step 4: Simplify right side
    552.15x = 227,186.57
  5. Step 5: Solve for x
    x = 227,186.57/552.15
  6. Step 6: Final answer
    x = 411.46

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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.