Home / 312,186.92-430,819.29-168,946.97

Finding the Fourth Proportional to 312,186.92, 430,819.29 and 168,946.97

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Solution

The fourth proportional to 312,186.92, 430,819.29 and 168,946.97 is: 233,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,186.92 : 430,819.29 = 168,946.97 : x
  2. Step 2: Convert to fraction form
    312,186.92/430,819.29 = 168,946.97/x
  3. Step 3: Cross multiply
    312,186.92x = 430,819.29 × 168,946.97
  4. Step 4: Simplify right side
    312,186.92x = 72,785,611,508.95
  5. Step 5: Solve for x
    x = 72,785,611,508.95/312,186.92
  6. Step 6: Final answer
    x = 233,147.54

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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.