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Finding the Fourth Proportional to 445,777.58, 668,664.07 and 108,820.01

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Solution

The fourth proportional to 445,777.58, 668,664.07 and 108,820.01 is: 163,229.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,777.58 : 668,664.07 = 108,820.01 : x
  2. Step 2: Convert to fraction form
    445,777.58/668,664.07 = 108,820.01/x
  3. Step 3: Cross multiply
    445,777.58x = 668,664.07 × 108,820.01
  4. Step 4: Simplify right side
    445,777.58x = 72,764,032,183.65
  5. Step 5: Solve for x
    x = 72,764,032,183.65/445,777.58
  6. Step 6: Final answer
    x = 163,229.46

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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.