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Finding the Fourth Proportional to 270,001.20, 405,001.80 and 169,836.60

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Solution

The fourth proportional to 270,001.20, 405,001.80 and 169,836.60 is: 254,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,001.20 : 405,001.80 = 169,836.60 : x
  2. Step 2: Convert to fraction form
    270,001.20/405,001.80 = 169,836.60/x
  3. Step 3: Cross multiply
    270,001.20x = 405,001.80 × 169,836.60
  4. Step 4: Simplify right side
    270,001.20x = 68,784,128,705.88
  5. Step 5: Solve for x
    x = 68,784,128,705.88/270,001.20
  6. Step 6: Final answer
    x = 254,754.90

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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.