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Finding the Fourth Proportional to 278,230.83, 417,936.35 and 262,034.07

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Solution

The fourth proportional to 278,230.83, 417,936.35 and 262,034.07 is: 393,606.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,230.83 : 417,936.35 = 262,034.07 : x
  2. Step 2: Convert to fraction form
    278,230.83/417,936.35 = 262,034.07/x
  3. Step 3: Cross multiply
    278,230.83x = 417,936.35 × 262,034.07
  4. Step 4: Simplify right side
    278,230.83x = 109,513,561,481.27
  5. Step 5: Solve for x
    x = 109,513,561,481.27/278,230.83
  6. Step 6: Final answer
    x = 393,606.85

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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.