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Finding the Fourth Proportional to 270,687.09, 405,890.73 and 118,822.01

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Solution

The fourth proportional to 270,687.09, 405,890.73 and 118,822.01 is: 178,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,687.09 : 405,890.73 = 118,822.01 : x
  2. Step 2: Convert to fraction form
    270,687.09/405,890.73 = 118,822.01/x
  3. Step 3: Cross multiply
    270,687.09x = 405,890.73 × 118,822.01
  4. Step 4: Simplify right side
    270,687.09x = 48,228,753,393.69
  5. Step 5: Solve for x
    x = 48,228,753,393.69/270,687.09
  6. Step 6: Final answer
    x = 178,171.61

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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.