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Finding the Fourth Proportional to 425,199.21, 637,813.40 and 225,249.09

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Solution

The fourth proportional to 425,199.21, 637,813.40 and 225,249.09 is: 337,881.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,199.21 : 637,813.40 = 225,249.09 : x
  2. Step 2: Convert to fraction form
    425,199.21/637,813.40 = 225,249.09/x
  3. Step 3: Cross multiply
    425,199.21x = 637,813.40 × 225,249.09
  4. Step 4: Simplify right side
    425,199.21x = 143,666,886,813.56
  5. Step 5: Solve for x
    x = 143,666,886,813.56/425,199.21
  6. Step 6: Final answer
    x = 337,881.36

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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.