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Finding the Fourth Proportional to 445,496.05, 668,114.48 and 245,912.05

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Solution

The fourth proportional to 445,496.05, 668,114.48 and 245,912.05 is: 368,796.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,496.05 : 668,114.48 = 245,912.05 : x
  2. Step 2: Convert to fraction form
    445,496.05/668,114.48 = 245,912.05/x
  3. Step 3: Cross multiply
    445,496.05x = 668,114.48 × 245,912.05
  4. Step 4: Simplify right side
    445,496.05x = 164,297,400,181.92
  5. Step 5: Solve for x
    x = 164,297,400,181.92/445,496.05
  6. Step 6: Final answer
    x = 368,796.54

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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.