Home / 202,579.38-279,226.14-143,662.51

Finding the Fourth Proportional to 202,579.38, 279,226.14 and 143,662.51

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Solution

The fourth proportional to 202,579.38, 279,226.14 and 143,662.51 is: 198,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,579.38 : 279,226.14 = 143,662.51 : x
  2. Step 2: Convert to fraction form
    202,579.38/279,226.14 = 143,662.51/x
  3. Step 3: Cross multiply
    202,579.38x = 279,226.14 × 143,662.51
  4. Step 4: Simplify right side
    202,579.38x = 40,114,327,940.31
  5. Step 5: Solve for x
    x = 40,114,327,940.31/202,579.38
  6. Step 6: Final answer
    x = 198,017.82

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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.