Home / 278,936.60-418,169.74-121,046.12

Finding the Fourth Proportional to 278,936.60, 418,169.74 and 121,046.12

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Solution

The fourth proportional to 278,936.60, 418,169.74 and 121,046.12 is: 181,467.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,936.60 : 418,169.74 = 121,046.12 : x
  2. Step 2: Convert to fraction form
    278,936.60/418,169.74 = 121,046.12/x
  3. Step 3: Cross multiply
    278,936.60x = 418,169.74 × 121,046.12
  4. Step 4: Simplify right side
    278,936.60x = 50,617,824,528.41
  5. Step 5: Solve for x
    x = 50,617,824,528.41/278,936.60
  6. Step 6: Final answer
    x = 181,467.13

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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.