Home / 230,238.05-317,723.71-128,263.37

Finding the Fourth Proportional to 230,238.05, 317,723.71 and 128,263.37

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Solution

The fourth proportional to 230,238.05, 317,723.71 and 128,263.37 is: 177,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,238.05 : 317,723.71 = 128,263.37 : x
  2. Step 2: Convert to fraction form
    230,238.05/317,723.71 = 128,263.37/x
  3. Step 3: Cross multiply
    230,238.05x = 317,723.71 × 128,263.37
  4. Step 4: Simplify right side
    230,238.05x = 40,752,313,773.50
  5. Step 5: Solve for x
    x = 40,752,313,773.50/230,238.05
  6. Step 6: Final answer
    x = 177,000.78

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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.