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Finding the Fourth Proportional to 425,229.45, 637,867.44 and 172,472.37

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Solution

The fourth proportional to 425,229.45, 637,867.44 and 172,472.37 is: 258,717.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,229.45 : 637,867.44 = 172,472.37 : x
  2. Step 2: Convert to fraction form
    425,229.45/637,867.44 = 172,472.37/x
  3. Step 3: Cross multiply
    425,229.45x = 637,867.44 × 172,472.37
  4. Step 4: Simplify right side
    425,229.45x = 110,014,509,122.63
  5. Step 5: Solve for x
    x = 110,014,509,122.63/425,229.45
  6. Step 6: Final answer
    x = 258,717.99

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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.