Home / 304,786.69-420,811.14-190,239.82

Finding the Fourth Proportional to 304,786.69, 420,811.14 and 190,239.82

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Solution

The fourth proportional to 304,786.69, 420,811.14 and 190,239.82 is: 262,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,786.69 : 420,811.14 = 190,239.82 : x
  2. Step 2: Convert to fraction form
    304,786.69/420,811.14 = 190,239.82/x
  3. Step 3: Cross multiply
    304,786.69x = 420,811.14 × 190,239.82
  4. Step 4: Simplify right side
    304,786.69x = 80,055,035,527.59
  5. Step 5: Solve for x
    x = 80,055,035,527.59/304,786.69
  6. Step 6: Final answer
    x = 262,659.22

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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.