Home / 278,125.56-417,187.53-100,631.88

Finding the Fourth Proportional to 278,125.56, 417,187.53 and 100,631.88

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Solution

The fourth proportional to 278,125.56, 417,187.53 and 100,631.88 is: 150,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,125.56 : 417,187.53 = 100,631.88 : x
  2. Step 2: Convert to fraction form
    278,125.56/417,187.53 = 100,631.88/x
  3. Step 3: Cross multiply
    278,125.56x = 417,187.53 × 100,631.88
  4. Step 4: Simplify right side
    278,125.56x = 41,982,365,456.46
  5. Step 5: Solve for x
    x = 41,982,365,456.46/278,125.56
  6. Step 6: Final answer
    x = 150,947.53

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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.