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Finding the Fourth Proportional to 425,399.98, 638,050.56 and 109,832.08

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Solution

The fourth proportional to 425,399.98, 638,050.56 and 109,832.08 is: 164,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,399.98 : 638,050.56 = 109,832.08 : x
  2. Step 2: Convert to fraction form
    425,399.98/638,050.56 = 109,832.08/x
  3. Step 3: Cross multiply
    425,399.98x = 638,050.56 × 109,832.08
  4. Step 4: Simplify right side
    425,399.98x = 70,078,420,149.96
  5. Step 5: Solve for x
    x = 70,078,420,149.96/425,399.98
  6. Step 6: Final answer
    x = 164,735.36

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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.