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Finding the Fourth Proportional to 219,655.70, 329,107.39 and 119,885.91

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Solution

The fourth proportional to 219,655.70, 329,107.39 and 119,885.91 is: 179,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,655.70 : 329,107.39 = 119,885.91 : x
  2. Step 2: Convert to fraction form
    219,655.70/329,107.39 = 119,885.91/x
  3. Step 3: Cross multiply
    219,655.70x = 329,107.39 × 119,885.91
  4. Step 4: Simplify right side
    219,655.70x = 39,455,337,404.01
  5. Step 5: Solve for x
    x = 39,455,337,404.01/219,655.70
  6. Step 6: Final answer
    x = 179,623.55

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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.