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Finding the Fourth Proportional to 360.64, 500.80 and 357.76

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Solution

The fourth proportional to 360.64, 500.80 and 357.76 is: 496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.64 : 500.80 = 357.76 : x
  2. Step 2: Convert to fraction form
    360.64/500.80 = 357.76/x
  3. Step 3: Cross multiply
    360.64x = 500.80 × 357.76
  4. Step 4: Simplify right side
    360.64x = 179,166.21
  5. Step 5: Solve for x
    x = 179,166.21/360.64
  6. Step 6: Final answer
    x = 496.80

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.