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Finding the Fourth Proportional to 445,520.33, 668,177.07 and 265,655.98

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Solution

The fourth proportional to 445,520.33, 668,177.07 and 265,655.98 is: 398,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,520.33 : 668,177.07 = 265,655.98 : x
  2. Step 2: Convert to fraction form
    445,520.33/668,177.07 = 265,655.98/x
  3. Step 3: Cross multiply
    445,520.33x = 668,177.07 × 265,655.98
  4. Step 4: Simplify right side
    445,520.33x = 177,505,234,183.39
  5. Step 5: Solve for x
    x = 177,505,234,183.39/445,520.33
  6. Step 6: Final answer
    x = 398,422.30

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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.