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Finding the Fourth Proportional to 202,059.48, 278,844 and 111,419.04

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Solution

The fourth proportional to 202,059.48, 278,844 and 111,419.04 is: 153,759.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,059.48 : 278,844 = 111,419.04 : x
  2. Step 2: Convert to fraction form
    202,059.48/278,844 = 111,419.04/x
  3. Step 3: Cross multiply
    202,059.48x = 278,844 × 111,419.04
  4. Step 4: Simplify right side
    202,059.48x = 31,068,530,789.76
  5. Step 5: Solve for x
    x = 31,068,530,789.76/202,059.48
  6. Step 6: Final answer
    x = 153,759.33

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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.