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Finding the Fourth Proportional to 300,684.75, 451,053.77 and 79,068.75

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Solution

The fourth proportional to 300,684.75, 451,053.77 and 79,068.75 is: 118,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,684.75 : 451,053.77 = 79,068.75 : x
  2. Step 2: Convert to fraction form
    300,684.75/451,053.77 = 79,068.75/x
  3. Step 3: Cross multiply
    300,684.75x = 451,053.77 × 79,068.75
  4. Step 4: Simplify right side
    300,684.75x = 35,664,257,381.34
  5. Step 5: Solve for x
    x = 35,664,257,381.34/300,684.75
  6. Step 6: Final answer
    x = 118,610.13

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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.