Home / 206,142.48-309,223.04-56,379.42

Finding the Fourth Proportional to 206,142.48, 309,223.04 and 56,379.42

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Solution

The fourth proportional to 206,142.48, 309,223.04 and 56,379.42 is: 84,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,142.48 : 309,223.04 = 56,379.42 : x
  2. Step 2: Convert to fraction form
    206,142.48/309,223.04 = 56,379.42/x
  3. Step 3: Cross multiply
    206,142.48x = 309,223.04 × 56,379.42
  4. Step 4: Simplify right side
    206,142.48x = 17,433,815,363.94
  5. Step 5: Solve for x
    x = 17,433,815,363.94/206,142.48
  6. Step 6: Final answer
    x = 84,571.68

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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.