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Finding the Fourth Proportional to 556.97, 768.56 and 370.67

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Solution

The fourth proportional to 556.97, 768.56 and 370.67 is: 511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.97 : 768.56 = 370.67 : x
  2. Step 2: Convert to fraction form
    556.97/768.56 = 370.67/x
  3. Step 3: Cross multiply
    556.97x = 768.56 × 370.67
  4. Step 4: Simplify right side
    556.97x = 284,876.44
  5. Step 5: Solve for x
    x = 284,876.44/556.97
  6. Step 6: Final answer
    x = 511.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.