Home / 219,916.30-329,874.45-143,808.70

Finding the Fourth Proportional to 219,916.30, 329,874.45 and 143,808.70

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Solution

The fourth proportional to 219,916.30, 329,874.45 and 143,808.70 is: 215,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,916.30 : 329,874.45 = 143,808.70 : x
  2. Step 2: Convert to fraction form
    219,916.30/329,874.45 = 143,808.70/x
  3. Step 3: Cross multiply
    219,916.30x = 329,874.45 × 143,808.70
  4. Step 4: Simplify right side
    219,916.30x = 47,438,815,817.72
  5. Step 5: Solve for x
    x = 47,438,815,817.72/219,916.30
  6. Step 6: Final answer
    x = 215,713.05

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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.