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Finding the Fourth Proportional to 445,450.50, 667,858.32 and 208,664.01

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Solution

The fourth proportional to 445,450.50, 667,858.32 and 208,664.01 is: 312,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,450.50 : 667,858.32 = 208,664.01 : x
  2. Step 2: Convert to fraction form
    445,450.50/667,858.32 = 208,664.01/x
  3. Step 3: Cross multiply
    445,450.50x = 667,858.32 × 208,664.01
  4. Step 4: Simplify right side
    445,450.50x = 139,357,995,163.06
  5. Step 5: Solve for x
    x = 139,357,995,163.06/445,450.50
  6. Step 6: Final answer
    x = 312,847.32

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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.