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Finding the Fourth Proportional to 205,874.60, 308,351.10 and 169,010.60

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Solution

The fourth proportional to 205,874.60, 308,351.10 and 169,010.60 is: 253,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,874.60 : 308,351.10 = 169,010.60 : x
  2. Step 2: Convert to fraction form
    205,874.60/308,351.10 = 169,010.60/x
  3. Step 3: Cross multiply
    205,874.60x = 308,351.10 × 169,010.60
  4. Step 4: Simplify right side
    205,874.60x = 52,114,604,421.66
  5. Step 5: Solve for x
    x = 52,114,604,421.66/205,874.60
  6. Step 6: Final answer
    x = 253,137.61

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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.