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Finding the Fourth Proportional to 361.02, 498 and 250.30

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Solution

The fourth proportional to 361.02, 498 and 250.30 is: 345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.02 : 498 = 250.30 : x
  2. Step 2: Convert to fraction form
    361.02/498 = 250.30/x
  3. Step 3: Cross multiply
    361.02x = 498 × 250.30
  4. Step 4: Simplify right side
    361.02x = 124,649.40
  5. Step 5: Solve for x
    x = 124,649.40/361.02
  6. Step 6: Final answer
    x = 345.27

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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.