Home / 230,836.32-318,563.75-128,867.44

Finding the Fourth Proportional to 230,836.32, 318,563.75 and 128,867.44

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Solution

The fourth proportional to 230,836.32, 318,563.75 and 128,867.44 is: 177,842.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,836.32 : 318,563.75 = 128,867.44 : x
  2. Step 2: Convert to fraction form
    230,836.32/318,563.75 = 128,867.44/x
  3. Step 3: Cross multiply
    230,836.32x = 318,563.75 × 128,867.44
  4. Step 4: Simplify right side
    230,836.32x = 41,052,494,939.30
  5. Step 5: Solve for x
    x = 41,052,494,939.30/230,836.32
  6. Step 6: Final answer
    x = 177,842.44

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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.