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Finding the Fourth Proportional to 425,108.22, 637,724.97 and 225,377.34

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Solution

The fourth proportional to 425,108.22, 637,724.97 and 225,377.34 is: 338,099.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,108.22 : 637,724.97 = 225,377.34 : x
  2. Step 2: Convert to fraction form
    425,108.22/637,724.97 = 225,377.34/x
  3. Step 3: Cross multiply
    425,108.22x = 637,724.97 × 225,377.34
  4. Step 4: Simplify right side
    425,108.22x = 143,728,757,390.18
  5. Step 5: Solve for x
    x = 143,728,757,390.18/425,108.22
  6. Step 6: Final answer
    x = 338,099.22

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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.