Home / 397,917.36-597,138.48-187,576.56

Finding the Fourth Proportional to 397,917.36, 597,138.48 and 187,576.56

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Solution

The fourth proportional to 397,917.36, 597,138.48 and 187,576.56 is: 281,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,917.36 : 597,138.48 = 187,576.56 : x
  2. Step 2: Convert to fraction form
    397,917.36/597,138.48 = 187,576.56/x
  3. Step 3: Cross multiply
    397,917.36x = 597,138.48 × 187,576.56
  4. Step 4: Simplify right side
    397,917.36x = 112,009,181,922.03
  5. Step 5: Solve for x
    x = 112,009,181,922.03/397,917.36
  6. Step 6: Final answer
    x = 281,488.55

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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.