Home / 305,696.06-421,910.76-178,371.34

Finding the Fourth Proportional to 305,696.06, 421,910.76 and 178,371.34

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Solution

The fourth proportional to 305,696.06, 421,910.76 and 178,371.34 is: 246,181.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,696.06 : 421,910.76 = 178,371.34 : x
  2. Step 2: Convert to fraction form
    305,696.06/421,910.76 = 178,371.34/x
  3. Step 3: Cross multiply
    305,696.06x = 421,910.76 × 178,371.34
  4. Step 4: Simplify right side
    305,696.06x = 75,256,787,621.62
  5. Step 5: Solve for x
    x = 75,256,787,621.62/305,696.06
  6. Step 6: Final answer
    x = 246,181.74

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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.