Home / 219,520.67-329,044.78-143,590.61

Finding the Fourth Proportional to 219,520.67, 329,044.78 and 143,590.61

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Solution

The fourth proportional to 219,520.67, 329,044.78 and 143,590.61 is: 215,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,520.67 : 329,044.78 = 143,590.61 : x
  2. Step 2: Convert to fraction form
    219,520.67/329,044.78 = 143,590.61/x
  3. Step 3: Cross multiply
    219,520.67x = 329,044.78 × 143,590.61
  4. Step 4: Simplify right side
    219,520.67x = 47,247,740,677.52
  5. Step 5: Solve for x
    x = 47,247,740,677.52/219,520.67
  6. Step 6: Final answer
    x = 215,231.40

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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.