Home / 399,869.37-599,804.06-133,629.87

Finding the Fourth Proportional to 399,869.37, 599,804.06 and 133,629.87

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Solution

The fourth proportional to 399,869.37, 599,804.06 and 133,629.87 is: 200,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,869.37 : 599,804.06 = 133,629.87 : x
  2. Step 2: Convert to fraction form
    399,869.37/599,804.06 = 133,629.87/x
  3. Step 3: Cross multiply
    399,869.37x = 599,804.06 × 133,629.87
  4. Step 4: Simplify right side
    399,869.37x = 80,151,740,144.39
  5. Step 5: Solve for x
    x = 80,151,740,144.39/399,869.37
  6. Step 6: Final answer
    x = 200,444.81

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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.