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Finding the Fourth Proportional to 250,664.86, 345,994.95 and 161,240.86

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Solution

The fourth proportional to 250,664.86, 345,994.95 and 161,240.86 is: 222,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,664.86 : 345,994.95 = 161,240.86 : x
  2. Step 2: Convert to fraction form
    250,664.86/345,994.95 = 161,240.86/x
  3. Step 3: Cross multiply
    250,664.86x = 345,994.95 × 161,240.86
  4. Step 4: Simplify right side
    250,664.86x = 55,788,523,293.66
  5. Step 5: Solve for x
    x = 55,788,523,293.66/250,664.86
  6. Step 6: Final answer
    x = 222,562.20

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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.