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Finding the Fourth Proportional to 556.39, 767.44 and 359.85

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Solution

The fourth proportional to 556.39, 767.44 and 359.85 is: 496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.39 : 767.44 = 359.85 : x
  2. Step 2: Convert to fraction form
    556.39/767.44 = 359.85/x
  3. Step 3: Cross multiply
    556.39x = 767.44 × 359.85
  4. Step 4: Simplify right side
    556.39x = 276,163.28
  5. Step 5: Solve for x
    x = 276,163.28/556.39
  6. Step 6: Final answer
    x = 496.35

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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.