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Finding the Fourth Proportional to 556.32, 768.02 and 359.95

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Solution

The fourth proportional to 556.32, 768.02 and 359.95 is: 496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.32 : 768.02 = 359.95 : x
  2. Step 2: Convert to fraction form
    556.32/768.02 = 359.95/x
  3. Step 3: Cross multiply
    556.32x = 768.02 × 359.95
  4. Step 4: Simplify right side
    556.32x = 276,448.80
  5. Step 5: Solve for x
    x = 276,448.80/556.32
  6. Step 6: Final answer
    x = 496.92

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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.