Home / 202,428.37-279,351.07-111,784.51

Finding the Fourth Proportional to 202,428.37, 279,351.07 and 111,784.51

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Solution

The fourth proportional to 202,428.37, 279,351.07 and 111,784.51 is: 154,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,428.37 : 279,351.07 = 111,784.51 : x
  2. Step 2: Convert to fraction form
    202,428.37/279,351.07 = 111,784.51/x
  3. Step 3: Cross multiply
    202,428.37x = 279,351.07 × 111,784.51
  4. Step 4: Simplify right side
    202,428.37x = 31,227,122,477.93
  5. Step 5: Solve for x
    x = 31,227,122,477.93/202,428.37
  6. Step 6: Final answer
    x = 154,262.58

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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.