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Finding the Fourth Proportional to 247,044.96, 340,921.44 and 133,869.60

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Solution

The fourth proportional to 247,044.96, 340,921.44 and 133,869.60 is: 184,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,044.96 : 340,921.44 = 133,869.60 : x
  2. Step 2: Convert to fraction form
    247,044.96/340,921.44 = 133,869.60/x
  3. Step 3: Cross multiply
    247,044.96x = 340,921.44 × 133,869.60
  4. Step 4: Simplify right side
    247,044.96x = 45,639,016,804.22
  5. Step 5: Solve for x
    x = 45,639,016,804.22/247,044.96
  6. Step 6: Final answer
    x = 184,739.72

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1.5x scale

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.