Home / 397,698.03-596,640.48-131,458.56

Finding the Fourth Proportional to 397,698.03, 596,640.48 and 131,458.56

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Solution

The fourth proportional to 397,698.03, 596,640.48 and 131,458.56 is: 197,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,698.03 : 596,640.48 = 131,458.56 : x
  2. Step 2: Convert to fraction form
    397,698.03/596,640.48 = 131,458.56/x
  3. Step 3: Cross multiply
    397,698.03x = 596,640.48 × 131,458.56
  4. Step 4: Simplify right side
    397,698.03x = 78,433,498,338.51
  5. Step 5: Solve for x
    x = 78,433,498,338.51/397,698.03
  6. Step 6: Final answer
    x = 197,218.72

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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.