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Finding the Fourth Proportional to 278,888.50, 419,850.20 and 254,087.92

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Solution

The fourth proportional to 278,888.50, 419,850.20 and 254,087.92 is: 382,514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,888.50 : 419,850.20 = 254,087.92 : x
  2. Step 2: Convert to fraction form
    278,888.50/419,850.20 = 254,087.92/x
  3. Step 3: Cross multiply
    278,888.50x = 419,850.20 × 254,087.92
  4. Step 4: Simplify right side
    278,888.50x = 106,678,864,029.58
  5. Step 5: Solve for x
    x = 106,678,864,029.58/278,888.50
  6. Step 6: Final answer
    x = 382,514.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.