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Finding the Fourth Proportional to 219,789.36, 303,309.36 and 119,187.36

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Solution

The fourth proportional to 219,789.36, 303,309.36 and 119,187.36 is: 164,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,789.36 : 303,309.36 = 119,187.36 : x
  2. Step 2: Convert to fraction form
    219,789.36/303,309.36 = 119,187.36/x
  3. Step 3: Cross multiply
    219,789.36x = 303,309.36 × 119,187.36
  4. Step 4: Simplify right side
    219,789.36x = 36,150,641,881.69
  5. Step 5: Solve for x
    x = 36,150,641,881.69/219,789.36
  6. Step 6: Final answer
    x = 164,478.58

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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.