Home / 230,336.52-317,860.07-128,359.73

Finding the Fourth Proportional to 230,336.52, 317,860.07 and 128,359.73

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Solution

The fourth proportional to 230,336.52, 317,860.07 and 128,359.73 is: 177,134.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,336.52 : 317,860.07 = 128,359.73 : x
  2. Step 2: Convert to fraction form
    230,336.52/317,860.07 = 128,359.73/x
  3. Step 3: Cross multiply
    230,336.52x = 317,860.07 × 128,359.73
  4. Step 4: Simplify right side
    230,336.52x = 40,800,433,481.21
  5. Step 5: Solve for x
    x = 40,800,433,481.21/230,336.52
  6. Step 6: Final answer
    x = 177,134.02

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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.