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Finding the Fourth Proportional to 505.11, 758.56 and 332.13

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Solution

The fourth proportional to 505.11, 758.56 and 332.13 is: 498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.11 : 758.56 = 332.13 : x
  2. Step 2: Convert to fraction form
    505.11/758.56 = 332.13/x
  3. Step 3: Cross multiply
    505.11x = 758.56 × 332.13
  4. Step 4: Simplify right side
    505.11x = 251,940.53
  5. Step 5: Solve for x
    x = 251,940.53/505.11
  6. Step 6: Final answer
    x = 498.78

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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.