Home / 399,183.09-598,783.13-143,032.39

Finding the Fourth Proportional to 399,183.09, 598,783.13 and 143,032.39

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Solution

The fourth proportional to 399,183.09, 598,783.13 and 143,032.39 is: 214,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,183.09 : 598,783.13 = 143,032.39 : x
  2. Step 2: Convert to fraction form
    399,183.09/598,783.13 = 143,032.39/x
  3. Step 3: Cross multiply
    399,183.09x = 598,783.13 × 143,032.39
  4. Step 4: Simplify right side
    399,183.09x = 85,645,382,175.58
  5. Step 5: Solve for x
    x = 85,645,382,175.58/399,183.09
  6. Step 6: Final answer
    x = 214,551.63

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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.