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Finding the Fourth Proportional to 273,427.92, 410,144.44 and 86,440.40

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Solution

The fourth proportional to 273,427.92, 410,144.44 and 86,440.40 is: 129,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,427.92 : 410,144.44 = 86,440.40 : x
  2. Step 2: Convert to fraction form
    273,427.92/410,144.44 = 86,440.40/x
  3. Step 3: Cross multiply
    273,427.92x = 410,144.44 × 86,440.40
  4. Step 4: Simplify right side
    273,427.92x = 35,453,049,451.38
  5. Step 5: Solve for x
    x = 35,453,049,451.38/273,427.92
  6. Step 6: Final answer
    x = 129,661.41

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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.