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Finding the Fourth Proportional to 478,183.50, 659,867.58 and 274,224.49

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Solution

The fourth proportional to 478,183.50, 659,867.58 and 274,224.49 is: 378,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,183.50 : 659,867.58 = 274,224.49 : x
  2. Step 2: Convert to fraction form
    478,183.50/659,867.58 = 274,224.49/x
  3. Step 3: Cross multiply
    478,183.50x = 659,867.58 × 274,224.49
  4. Step 4: Simplify right side
    478,183.50x = 180,951,848,943.37
  5. Step 5: Solve for x
    x = 180,951,848,943.37/478,183.50
  6. Step 6: Final answer
    x = 378,415.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.