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Finding the Fourth Proportional to 300,804.92, 451,264.30 and 120,904.34

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Solution

The fourth proportional to 300,804.92, 451,264.30 and 120,904.34 is: 181,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,804.92 : 451,264.30 = 120,904.34 : x
  2. Step 2: Convert to fraction form
    300,804.92/451,264.30 = 120,904.34/x
  3. Step 3: Cross multiply
    300,804.92x = 451,264.30 × 120,904.34
  4. Step 4: Simplify right side
    300,804.92x = 54,559,812,357.06
  5. Step 5: Solve for x
    x = 54,559,812,357.06/300,804.92
  6. Step 6: Final answer
    x = 181,379.39

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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.