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Finding the Fourth Proportional to 361.86, 540.65 and 358.62

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Solution

The fourth proportional to 361.86, 540.65 and 358.62 is: 535.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.86 : 540.65 = 358.62 : x
  2. Step 2: Convert to fraction form
    361.86/540.65 = 358.62/x
  3. Step 3: Cross multiply
    361.86x = 540.65 × 358.62
  4. Step 4: Simplify right side
    361.86x = 193,887.90
  5. Step 5: Solve for x
    x = 193,887.90/361.86
  6. Step 6: Final answer
    x = 535.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.