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Finding the Fourth Proportional to 425,080.82, 637,768.84 and 188,589.56

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Solution

The fourth proportional to 425,080.82, 637,768.84 and 188,589.56 is: 282,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,080.82 : 637,768.84 = 188,589.56 : x
  2. Step 2: Convert to fraction form
    425,080.82/637,768.84 = 188,589.56/x
  3. Step 3: Cross multiply
    425,080.82x = 637,768.84 × 188,589.56
  4. Step 4: Simplify right side
    425,080.82x = 120,276,544,917.31
  5. Step 5: Solve for x
    x = 120,276,544,917.31/425,080.82
  6. Step 6: Final answer
    x = 282,949.83

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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.