Home / 259,120.26-388,385.53-157,694.56

Finding the Fourth Proportional to 259,120.26, 388,385.53 and 157,694.56

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Solution

The fourth proportional to 259,120.26, 388,385.53 and 157,694.56 is: 236,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,120.26 : 388,385.53 = 157,694.56 : x
  2. Step 2: Convert to fraction form
    259,120.26/388,385.53 = 157,694.56/x
  3. Step 3: Cross multiply
    259,120.26x = 388,385.53 × 157,694.56
  4. Step 4: Simplify right side
    259,120.26x = 61,246,285,263.72
  5. Step 5: Solve for x
    x = 61,246,285,263.72/259,120.26
  6. Step 6: Final answer
    x = 236,362.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.