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Finding the Fourth Proportional to 202,354.64, 279,249.81 and 111,710.73

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Solution

The fourth proportional to 202,354.64, 279,249.81 and 111,710.73 is: 154,161.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,354.64 : 279,249.81 = 111,710.73 : x
  2. Step 2: Convert to fraction form
    202,354.64/279,249.81 = 111,710.73/x
  3. Step 3: Cross multiply
    202,354.64x = 279,249.81 × 111,710.73
  4. Step 4: Simplify right side
    202,354.64x = 31,195,200,127.46
  5. Step 5: Solve for x
    x = 31,195,200,127.46/202,354.64
  6. Step 6: Final answer
    x = 154,161.03

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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.