Home / 278,268.41-417,033.56-145,260.54

Finding the Fourth Proportional to 278,268.41, 417,033.56 and 145,260.54

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Solution

The fourth proportional to 278,268.41, 417,033.56 and 145,260.54 is: 217,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,268.41 : 417,033.56 = 145,260.54 : x
  2. Step 2: Convert to fraction form
    278,268.41/417,033.56 = 145,260.54/x
  3. Step 3: Cross multiply
    278,268.41x = 417,033.56 × 145,260.54
  4. Step 4: Simplify right side
    278,268.41x = 60,578,520,486.87
  5. Step 5: Solve for x
    x = 60,578,520,486.87/278,268.41
  6. Step 6: Final answer
    x = 217,698.16

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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.