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Finding the Fourth Proportional to 220,874.61, 330,657.42 and 136,363.05

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Solution

The fourth proportional to 220,874.61, 330,657.42 and 136,363.05 is: 204,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,874.61 : 330,657.42 = 136,363.05 : x
  2. Step 2: Convert to fraction form
    220,874.61/330,657.42 = 136,363.05/x
  3. Step 3: Cross multiply
    220,874.61x = 330,657.42 × 136,363.05
  4. Step 4: Simplify right side
    220,874.61x = 45,089,454,296.33
  5. Step 5: Solve for x
    x = 45,089,454,296.33/220,874.61
  6. Step 6: Final answer
    x = 204,140.50

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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.