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Finding the Fourth Proportional to 205,014.54, 307,523.79 and 71,898.06

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Solution

The fourth proportional to 205,014.54, 307,523.79 and 71,898.06 is: 107,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,014.54 : 307,523.79 = 71,898.06 : x
  2. Step 2: Convert to fraction form
    205,014.54/307,523.79 = 71,898.06/x
  3. Step 3: Cross multiply
    205,014.54x = 307,523.79 × 71,898.06
  4. Step 4: Simplify right side
    205,014.54x = 22,110,363,904.85
  5. Step 5: Solve for x
    x = 22,110,363,904.85/205,014.54
  6. Step 6: Final answer
    x = 107,847.78

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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.