Home / 278,133.56-417,217.97-107,436.70

Finding the Fourth Proportional to 278,133.56, 417,217.97 and 107,436.70

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Solution

The fourth proportional to 278,133.56, 417,217.97 and 107,436.70 is: 161,161.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,133.56 : 417,217.97 = 107,436.70 : x
  2. Step 2: Convert to fraction form
    278,133.56/417,217.97 = 107,436.70/x
  3. Step 3: Cross multiply
    278,133.56x = 417,217.97 × 107,436.70
  4. Step 4: Simplify right side
    278,133.56x = 44,824,521,877.50
  5. Step 5: Solve for x
    x = 44,824,521,877.50/278,133.56
  6. Step 6: Final answer
    x = 161,161.86

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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.