Home / 219,916.20-329,874.30-131,269.80

Finding the Fourth Proportional to 219,916.20, 329,874.30 and 131,269.80

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Solution

The fourth proportional to 219,916.20, 329,874.30 and 131,269.80 is: 196,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,916.20 : 329,874.30 = 131,269.80 : x
  2. Step 2: Convert to fraction form
    219,916.20/329,874.30 = 131,269.80/x
  3. Step 3: Cross multiply
    219,916.20x = 329,874.30 × 131,269.80
  4. Step 4: Simplify right side
    219,916.20x = 43,302,533,386.14
  5. Step 5: Solve for x
    x = 43,302,533,386.14/219,916.20
  6. Step 6: Final answer
    x = 196,904.70

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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.