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Finding the Fourth Proportional to 220,000.60, 329,612.10 and 206,003.80

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Solution

The fourth proportional to 220,000.60, 329,612.10 and 206,003.80 is: 308,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,000.60 : 329,612.10 = 206,003.80 : x
  2. Step 2: Convert to fraction form
    220,000.60/329,612.10 = 206,003.80/x
  3. Step 3: Cross multiply
    220,000.60x = 329,612.10 × 206,003.80
  4. Step 4: Simplify right side
    220,000.60x = 67,901,345,125.98
  5. Step 5: Solve for x
    x = 67,901,345,125.98/220,000.60
  6. Step 6: Final answer
    x = 308,641.64

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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.