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Finding the Fourth Proportional to 425,560.10, 638,362.01 and 110,019.74

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Solution

The fourth proportional to 425,560.10, 638,362.01 and 110,019.74 is: 165,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,560.10 : 638,362.01 = 110,019.74 : x
  2. Step 2: Convert to fraction form
    425,560.10/638,362.01 = 110,019.74/x
  3. Step 3: Cross multiply
    425,560.10x = 638,362.01 × 110,019.74
  4. Step 4: Simplify right side
    425,560.10x = 70,232,419,449.32
  5. Step 5: Solve for x
    x = 70,232,419,449.32/425,560.10
  6. Step 6: Final answer
    x = 165,035.26

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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.