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Finding the Fourth Proportional to 263,419.60, 394,887.20 and 94,898.72

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Solution

The fourth proportional to 263,419.60, 394,887.20 and 94,898.72 is: 142,260.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,419.60 : 394,887.20 = 94,898.72 : x
  2. Step 2: Convert to fraction form
    263,419.60/394,887.20 = 94,898.72/x
  3. Step 3: Cross multiply
    263,419.60x = 394,887.20 × 94,898.72
  4. Step 4: Simplify right side
    263,419.60x = 37,474,289,824.38
  5. Step 5: Solve for x
    x = 37,474,289,824.38/263,419.60
  6. Step 6: Final answer
    x = 142,260.83

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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.