Home / 230,262.05-317,756.84-128,287.37

Finding the Fourth Proportional to 230,262.05, 317,756.84 and 128,287.37

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Solution

The fourth proportional to 230,262.05, 317,756.84 and 128,287.37 is: 177,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,262.05 : 317,756.84 = 128,287.37 : x
  2. Step 2: Convert to fraction form
    230,262.05/317,756.84 = 128,287.37/x
  3. Step 3: Cross multiply
    230,262.05x = 317,756.84 × 128,287.37
  4. Step 4: Simplify right side
    230,262.05x = 40,764,187,072.89
  5. Step 5: Solve for x
    x = 40,764,187,072.89/230,262.05
  6. Step 6: Final answer
    x = 177,033.90

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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.