Home / 312,187.29-430,819.80-168,947.34

Finding the Fourth Proportional to 312,187.29, 430,819.80 and 168,947.34

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Solution

The fourth proportional to 312,187.29, 430,819.80 and 168,947.34 is: 233,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,187.29 : 430,819.80 = 168,947.34 : x
  2. Step 2: Convert to fraction form
    312,187.29/430,819.80 = 168,947.34/x
  3. Step 3: Cross multiply
    312,187.29x = 430,819.80 × 168,947.34
  4. Step 4: Simplify right side
    312,187.29x = 72,785,859,229.33
  5. Step 5: Solve for x
    x = 72,785,859,229.33/312,187.29
  6. Step 6: Final answer
    x = 233,148.05

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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.