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Finding the Fourth Proportional to 278,371.56, 417,598.44 and 100,837.26

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Solution

The fourth proportional to 278,371.56, 417,598.44 and 100,837.26 is: 151,270.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,371.56 : 417,598.44 = 100,837.26 : x
  2. Step 2: Convert to fraction form
    278,371.56/417,598.44 = 100,837.26/x
  3. Step 3: Cross multiply
    278,371.56x = 417,598.44 × 100,837.26
  4. Step 4: Simplify right side
    278,371.56x = 42,109,482,469.87
  5. Step 5: Solve for x
    x = 42,109,482,469.87/278,371.56
  6. Step 6: Final answer
    x = 151,270.78

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1.5x scale

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.