Home / 239,629.20-330,794.36-154,787.60

Finding the Fourth Proportional to 239,629.20, 330,794.36 and 154,787.60

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Solution

The fourth proportional to 239,629.20, 330,794.36 and 154,787.60 is: 213,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,629.20 : 330,794.36 = 154,787.60 : x
  2. Step 2: Convert to fraction form
    239,629.20/330,794.36 = 154,787.60/x
  3. Step 3: Cross multiply
    239,629.20x = 330,794.36 × 154,787.60
  4. Step 4: Simplify right side
    239,629.20x = 51,202,865,077.94
  5. Step 5: Solve for x
    x = 51,202,865,077.94/239,629.20
  6. Step 6: Final answer
    x = 213,675.40

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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.