Home / 256,249.48-353,624.18-143,072.20

Finding the Fourth Proportional to 256,249.48, 353,624.18 and 143,072.20

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Solution

The fourth proportional to 256,249.48, 353,624.18 and 143,072.20 is: 197,439.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,249.48 : 353,624.18 = 143,072.20 : x
  2. Step 2: Convert to fraction form
    256,249.48/353,624.18 = 143,072.20/x
  3. Step 3: Cross multiply
    256,249.48x = 353,624.18 × 143,072.20
  4. Step 4: Simplify right side
    256,249.48x = 50,593,789,405.80
  5. Step 5: Solve for x
    x = 50,593,789,405.80/256,249.48
  6. Step 6: Final answer
    x = 197,439.58

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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.