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Finding the Fourth Proportional to 566.97, 850.74 and 278.40

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Solution

The fourth proportional to 566.97, 850.74 and 278.40 is: 417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.97 : 850.74 = 278.40 : x
  2. Step 2: Convert to fraction form
    566.97/850.74 = 278.40/x
  3. Step 3: Cross multiply
    566.97x = 850.74 × 278.40
  4. Step 4: Simplify right side
    566.97x = 236,849.21
  5. Step 5: Solve for x
    x = 236,849.21/566.97
  6. Step 6: Final answer
    x = 417.75

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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.