Home / 412,884.44-619,178.16-142,939.28

Finding the Fourth Proportional to 412,884.44, 619,178.16 and 142,939.28

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Solution

The fourth proportional to 412,884.44, 619,178.16 and 142,939.28 is: 214,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,884.44 : 619,178.16 = 142,939.28 : x
  2. Step 2: Convert to fraction form
    412,884.44/619,178.16 = 142,939.28/x
  3. Step 3: Cross multiply
    412,884.44x = 619,178.16 × 142,939.28
  4. Step 4: Simplify right side
    412,884.44x = 88,504,880,382.12
  5. Step 5: Solve for x
    x = 88,504,880,382.12/412,884.44
  6. Step 6: Final answer
    x = 214,357.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.