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Finding the Fourth Proportional to 445,280.20, 667,920.30 and 164,906.80

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Solution

The fourth proportional to 445,280.20, 667,920.30 and 164,906.80 is: 247,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,280.20 : 667,920.30 = 164,906.80 : x
  2. Step 2: Convert to fraction form
    445,280.20/667,920.30 = 164,906.80/x
  3. Step 3: Cross multiply
    445,280.20x = 667,920.30 × 164,906.80
  4. Step 4: Simplify right side
    445,280.20x = 110,144,599,328.04
  5. Step 5: Solve for x
    x = 110,144,599,328.04/445,280.20
  6. Step 6: Final answer
    x = 247,360.20

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1.5x scale

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.