Home / 221,820.54-306,255.38-197,905.70

Finding the Fourth Proportional to 221,820.54, 306,255.38 and 197,905.70

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Solution

The fourth proportional to 221,820.54, 306,255.38 and 197,905.70 is: 273,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,820.54 : 306,255.38 = 197,905.70 : x
  2. Step 2: Convert to fraction form
    221,820.54/306,255.38 = 197,905.70/x
  3. Step 3: Cross multiply
    221,820.54x = 306,255.38 × 197,905.70
  4. Step 4: Simplify right side
    221,820.54x = 60,609,682,836.86
  5. Step 5: Solve for x
    x = 60,609,682,836.86/221,820.54
  6. Step 6: Final answer
    x = 273,237.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.