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Finding the Fourth Proportional to 278,682.04, 418,015.77 and 98,764.84

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Solution

The fourth proportional to 278,682.04, 418,015.77 and 98,764.84 is: 148,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,682.04 : 418,015.77 = 98,764.84 : x
  2. Step 2: Convert to fraction form
    278,682.04/418,015.77 = 98,764.84/x
  3. Step 3: Cross multiply
    278,682.04x = 418,015.77 × 98,764.84
  4. Step 4: Simplify right side
    278,682.04x = 41,285,260,641.53
  5. Step 5: Solve for x
    x = 41,285,260,641.53/278,682.04
  6. Step 6: Final answer
    x = 148,144.68

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1.5x scale

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.