Home / 304,787.44-420,812.18-190,240.57

Finding the Fourth Proportional to 304,787.44, 420,812.18 and 190,240.57

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Solution

The fourth proportional to 304,787.44, 420,812.18 and 190,240.57 is: 262,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,787.44 : 420,812.18 = 190,240.57 : x
  2. Step 2: Convert to fraction form
    304,787.44/420,812.18 = 190,240.57/x
  3. Step 3: Cross multiply
    304,787.44x = 420,812.18 × 190,240.57
  4. Step 4: Simplify right side
    304,787.44x = 80,055,548,986.14
  5. Step 5: Solve for x
    x = 80,055,548,986.14/304,787.44
  6. Step 6: Final answer
    x = 262,660.26

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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.