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Finding the Fourth Proportional to 270,371.36, 405,552.56 and 80,832.17

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Solution

The fourth proportional to 270,371.36, 405,552.56 and 80,832.17 is: 121,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,371.36 : 405,552.56 = 80,832.17 : x
  2. Step 2: Convert to fraction form
    270,371.36/405,552.56 = 80,832.17/x
  3. Step 3: Cross multiply
    270,371.36x = 405,552.56 × 80,832.17
  4. Step 4: Simplify right side
    270,371.36x = 32,781,691,041.93
  5. Step 5: Solve for x
    x = 32,781,691,041.93/270,371.36
  6. Step 6: Final answer
    x = 121,246.91

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1.5x scale

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.