Home / 280,930.31-387,789.24-184,140.39

Finding the Fourth Proportional to 280,930.31, 387,789.24 and 184,140.39

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Solution

The fourth proportional to 280,930.31, 387,789.24 and 184,140.39 is: 254,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,930.31 : 387,789.24 = 184,140.39 : x
  2. Step 2: Convert to fraction form
    280,930.31/387,789.24 = 184,140.39/x
  3. Step 3: Cross multiply
    280,930.31x = 387,789.24 × 184,140.39
  4. Step 4: Simplify right side
    280,930.31x = 71,407,661,891.40
  5. Step 5: Solve for x
    x = 71,407,661,891.40/280,930.31
  6. Step 6: Final answer
    x = 254,182.84

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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.