Home / 220,083.21-329,586.39-198,783.77

Finding the Fourth Proportional to 220,083.21, 329,586.39 and 198,783.77

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Solution

The fourth proportional to 220,083.21, 329,586.39 and 198,783.77 is: 297,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,083.21 : 329,586.39 = 198,783.77 : x
  2. Step 2: Convert to fraction form
    220,083.21/329,586.39 = 198,783.77/x
  3. Step 3: Cross multiply
    220,083.21x = 329,586.39 × 198,783.77
  4. Step 4: Simplify right side
    220,083.21x = 65,516,423,496.96
  5. Step 5: Solve for x
    x = 65,516,423,496.96/220,083.21
  6. Step 6: Final answer
    x = 297,689.33

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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.