Home / 257,083.37-385,660.97-107,289.36

Finding the Fourth Proportional to 257,083.37, 385,660.97 and 107,289.36

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Solution

The fourth proportional to 257,083.37, 385,660.97 and 107,289.36 is: 160,949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,083.37 : 385,660.97 = 107,289.36 : x
  2. Step 2: Convert to fraction form
    257,083.37/385,660.97 = 107,289.36/x
  3. Step 3: Cross multiply
    257,083.37x = 385,660.97 × 107,289.36
  4. Step 4: Simplify right side
    257,083.37x = 41,377,318,111.83
  5. Step 5: Solve for x
    x = 41,377,318,111.83/257,083.37
  6. Step 6: Final answer
    x = 160,949.03

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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.