Home / 243,815.70-365,723.55-219,321.30

Finding the Fourth Proportional to 243,815.70, 365,723.55 and 219,321.30

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Solution

The fourth proportional to 243,815.70, 365,723.55 and 219,321.30 is: 328,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,815.70 : 365,723.55 = 219,321.30 : x
  2. Step 2: Convert to fraction form
    243,815.70/365,723.55 = 219,321.30/x
  3. Step 3: Cross multiply
    243,815.70x = 365,723.55 × 219,321.30
  4. Step 4: Simplify right side
    243,815.70x = 80,210,964,426.62
  5. Step 5: Solve for x
    x = 80,210,964,426.62/243,815.70
  6. Step 6: Final answer
    x = 328,981.95

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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.