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Finding the Fourth Proportional to 425,718.84, 638,578.24 and 110,174.82

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Solution

The fourth proportional to 425,718.84, 638,578.24 and 110,174.82 is: 165,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,718.84 : 638,578.24 = 110,174.82 : x
  2. Step 2: Convert to fraction form
    425,718.84/638,578.24 = 110,174.82/x
  3. Step 3: Cross multiply
    425,718.84x = 638,578.24 × 110,174.82
  4. Step 4: Simplify right side
    425,718.84x = 70,355,242,647.92
  5. Step 5: Solve for x
    x = 70,355,242,647.92/425,718.84
  6. Step 6: Final answer
    x = 165,262.22

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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.