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Finding the Fourth Proportional to 552.94, 828.48 and 278.44

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Solution

The fourth proportional to 552.94, 828.48 and 278.44 is: 417.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.94 : 828.48 = 278.44 : x
  2. Step 2: Convert to fraction form
    552.94/828.48 = 278.44/x
  3. Step 3: Cross multiply
    552.94x = 828.48 × 278.44
  4. Step 4: Simplify right side
    552.94x = 230,681.97
  5. Step 5: Solve for x
    x = 230,681.97/552.94
  6. Step 6: Final answer
    x = 417.19

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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.