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Finding the Fourth Proportional to 300,788.54, 451,239.72 and 120,887.95

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Solution

The fourth proportional to 300,788.54, 451,239.72 and 120,887.95 is: 181,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,788.54 : 451,239.72 = 120,887.95 : x
  2. Step 2: Convert to fraction form
    300,788.54/451,239.72 = 120,887.95/x
  3. Step 3: Cross multiply
    300,788.54x = 451,239.72 × 120,887.95
  4. Step 4: Simplify right side
    300,788.54x = 54,549,444,709.37
  5. Step 5: Solve for x
    x = 54,549,444,709.37/300,788.54
  6. Step 6: Final answer
    x = 181,354.80

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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.