Home / 312,106.06-430,569.66-182,979.20

Finding the Fourth Proportional to 312,106.06, 430,569.66 and 182,979.20

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Solution

The fourth proportional to 312,106.06, 430,569.66 and 182,979.20 is: 252,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,106.06 : 430,569.66 = 182,979.20 : x
  2. Step 2: Convert to fraction form
    312,106.06/430,569.66 = 182,979.20/x
  3. Step 3: Cross multiply
    312,106.06x = 430,569.66 × 182,979.20
  4. Step 4: Simplify right side
    312,106.06x = 78,785,288,863.33
  5. Step 5: Solve for x
    x = 78,785,288,863.33/312,106.06
  6. Step 6: Final answer
    x = 252,431.15

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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.