Home / 239,621.31-330,617.97-157,940.51

Finding the Fourth Proportional to 239,621.31, 330,617.97 and 157,940.51

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Solution

The fourth proportional to 239,621.31, 330,617.97 and 157,940.51 is: 217,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,621.31 : 330,617.97 = 157,940.51 : x
  2. Step 2: Convert to fraction form
    239,621.31/330,617.97 = 157,940.51/x
  3. Step 3: Cross multiply
    239,621.31x = 330,617.97 × 157,940.51
  4. Step 4: Simplify right side
    239,621.31x = 52,217,970,796.96
  5. Step 5: Solve for x
    x = 52,217,970,796.96/239,621.31
  6. Step 6: Final answer
    x = 217,918.73

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1.5x scale

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.