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Finding the Fourth Proportional to 202,324.81, 279,208.29 and 111,680.81

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Solution

The fourth proportional to 202,324.81, 279,208.29 and 111,680.81 is: 154,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,324.81 : 279,208.29 = 111,680.81 : x
  2. Step 2: Convert to fraction form
    202,324.81/279,208.29 = 111,680.81/x
  3. Step 3: Cross multiply
    202,324.81x = 279,208.29 × 111,680.81
  4. Step 4: Simplify right side
    202,324.81x = 31,182,207,427.51
  5. Step 5: Solve for x
    x = 31,182,207,427.51/202,324.81
  6. Step 6: Final answer
    x = 154,119.54

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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.