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Finding the Fourth Proportional to 254,171.79, 381,193.56 and 104,453.42

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Solution

The fourth proportional to 254,171.79, 381,193.56 and 104,453.42 is: 156,653.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,171.79 : 381,193.56 = 104,453.42 : x
  2. Step 2: Convert to fraction form
    254,171.79/381,193.56 = 104,453.42/x
  3. Step 3: Cross multiply
    254,171.79x = 381,193.56 × 104,453.42
  4. Step 4: Simplify right side
    254,171.79x = 39,816,969,118.01
  5. Step 5: Solve for x
    x = 39,816,969,118.01/254,171.79
  6. Step 6: Final answer
    x = 156,653.77

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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.