Home / 206,379.76-284,821.32-115,734.28

Finding the Fourth Proportional to 206,379.76, 284,821.32 and 115,734.28

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Solution

The fourth proportional to 206,379.76, 284,821.32 and 115,734.28 is: 159,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,379.76 : 284,821.32 = 115,734.28 : x
  2. Step 2: Convert to fraction form
    206,379.76/284,821.32 = 115,734.28/x
  3. Step 3: Cross multiply
    206,379.76x = 284,821.32 × 115,734.28
  4. Step 4: Simplify right side
    206,379.76x = 32,963,590,398.85
  5. Step 5: Solve for x
    x = 32,963,590,398.85/206,379.76
  6. Step 6: Final answer
    x = 159,722.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.