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Finding the Fourth Proportional to 254,690.30, 381,986.04 and 242,046.20

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Solution

The fourth proportional to 254,690.30, 381,986.04 and 242,046.20 is: 363,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,690.30 : 381,986.04 = 242,046.20 : x
  2. Step 2: Convert to fraction form
    254,690.30/381,986.04 = 242,046.20/x
  3. Step 3: Cross multiply
    254,690.30x = 381,986.04 × 242,046.20
  4. Step 4: Simplify right side
    254,690.30x = 92,458,269,435.05
  5. Step 5: Solve for x
    x = 92,458,269,435.05/254,690.30
  6. Step 6: Final answer
    x = 363,022.34

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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.