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Finding the Fourth Proportional to 220,098.30, 330,147.45 and 205,226.70

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Solution

The fourth proportional to 220,098.30, 330,147.45 and 205,226.70 is: 307,840.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,098.30 : 330,147.45 = 205,226.70 : x
  2. Step 2: Convert to fraction form
    220,098.30/330,147.45 = 205,226.70/x
  3. Step 3: Cross multiply
    220,098.30x = 330,147.45 × 205,226.70
  4. Step 4: Simplify right side
    220,098.30x = 67,755,071,676.92
  5. Step 5: Solve for x
    x = 67,755,071,676.92/220,098.30
  6. Step 6: Final answer
    x = 307,840.05

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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.