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Finding the Fourth Proportional to 300,509.36, 450,992.56 and 111,148.88

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Solution

The fourth proportional to 300,509.36, 450,992.56 and 111,148.88 is: 166,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,509.36 : 450,992.56 = 111,148.88 : x
  2. Step 2: Convert to fraction form
    300,509.36/450,992.56 = 111,148.88/x
  3. Step 3: Cross multiply
    300,509.36x = 450,992.56 × 111,148.88
  4. Step 4: Simplify right side
    300,509.36x = 50,127,317,932.33
  5. Step 5: Solve for x
    x = 50,127,317,932.33/300,509.36
  6. Step 6: Final answer
    x = 166,807.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.