Home / 230,235.05-317,719.58-128,260.37

Finding the Fourth Proportional to 230,235.05, 317,719.58 and 128,260.37

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Solution

The fourth proportional to 230,235.05, 317,719.58 and 128,260.37 is: 176,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,235.05 : 317,719.58 = 128,260.37 : x
  2. Step 2: Convert to fraction form
    230,235.05/317,719.58 = 128,260.37/x
  3. Step 3: Cross multiply
    230,235.05x = 317,719.58 × 128,260.37
  4. Step 4: Simplify right side
    230,235.05x = 40,750,828,657.14
  5. Step 5: Solve for x
    x = 40,750,828,657.14/230,235.05
  6. Step 6: Final answer
    x = 176,996.64

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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.