Home / 257,728.06-355,664.37-143,025.37

Finding the Fourth Proportional to 257,728.06, 355,664.37 and 143,025.37

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Solution

The fourth proportional to 257,728.06, 355,664.37 and 143,025.37 is: 197,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,728.06 : 355,664.37 = 143,025.37 : x
  2. Step 2: Convert to fraction form
    257,728.06/355,664.37 = 143,025.37/x
  3. Step 3: Cross multiply
    257,728.06x = 355,664.37 × 143,025.37
  4. Step 4: Simplify right side
    257,728.06x = 50,869,028,115.07
  5. Step 5: Solve for x
    x = 50,869,028,115.07/257,728.06
  6. Step 6: Final answer
    x = 197,374.81

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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.