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Finding the Fourth Proportional to 361.58, 499.29 and 245.48

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Solution

The fourth proportional to 361.58, 499.29 and 245.48 is: 338.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.58 : 499.29 = 245.48 : x
  2. Step 2: Convert to fraction form
    361.58/499.29 = 245.48/x
  3. Step 3: Cross multiply
    361.58x = 499.29 × 245.48
  4. Step 4: Simplify right side
    361.58x = 122,565.71
  5. Step 5: Solve for x
    x = 122,565.71/361.58
  6. Step 6: Final answer
    x = 338.97

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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.