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Finding the Fourth Proportional to 380,246.60, 570,399.60 and 169,905.80

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Solution

The fourth proportional to 380,246.60, 570,399.60 and 169,905.80 is: 254,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,246.60 : 570,399.60 = 169,905.80 : x
  2. Step 2: Convert to fraction form
    380,246.60/570,399.60 = 169,905.80/x
  3. Step 3: Cross multiply
    380,246.60x = 570,399.60 × 169,905.80
  4. Step 4: Simplify right side
    380,246.60x = 96,914,200,357.68
  5. Step 5: Solve for x
    x = 96,914,200,357.68/380,246.60
  6. Step 6: Final answer
    x = 254,871.97

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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.