Home / 312,161.56-430,968.54-204,919.18

Finding the Fourth Proportional to 312,161.56, 430,968.54 and 204,919.18

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Solution

The fourth proportional to 312,161.56, 430,968.54 and 204,919.18 is: 282,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,161.56 : 430,968.54 = 204,919.18 : x
  2. Step 2: Convert to fraction form
    312,161.56/430,968.54 = 204,919.18/x
  3. Step 3: Cross multiply
    312,161.56x = 430,968.54 × 204,919.18
  4. Step 4: Simplify right side
    312,161.56x = 88,313,719,822.60
  5. Step 5: Solve for x
    x = 88,313,719,822.60/312,161.56
  6. Step 6: Final answer
    x = 282,910.30

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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.