Home / 290,645.30-401,286.26-259,923.08

Finding the Fourth Proportional to 290,645.30, 401,286.26 and 259,923.08

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Solution

The fourth proportional to 290,645.30, 401,286.26 and 259,923.08 is: 358,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,645.30 : 401,286.26 = 259,923.08 : x
  2. Step 2: Convert to fraction form
    290,645.30/401,286.26 = 259,923.08/x
  3. Step 3: Cross multiply
    290,645.30x = 401,286.26 × 259,923.08
  4. Step 4: Simplify right side
    290,645.30x = 104,303,560,660.88
  5. Step 5: Solve for x
    x = 104,303,560,660.88/290,645.30
  6. Step 6: Final answer
    x = 358,868.91

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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.