Home / 278,132.56-417,216.47-107,435.70

Finding the Fourth Proportional to 278,132.56, 417,216.47 and 107,435.70

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Solution

The fourth proportional to 278,132.56, 417,216.47 and 107,435.70 is: 161,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,132.56 : 417,216.47 = 107,435.70 : x
  2. Step 2: Convert to fraction form
    278,132.56/417,216.47 = 107,435.70/x
  3. Step 3: Cross multiply
    278,132.56x = 417,216.47 × 107,435.70
  4. Step 4: Simplify right side
    278,132.56x = 44,823,942,968.80
  5. Step 5: Solve for x
    x = 44,823,942,968.80/278,132.56
  6. Step 6: Final answer
    x = 161,160.36

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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.