Finding the Fourth Proportional to 451,815.93, 677,691.86 and 211,982.49
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Solution
The fourth proportional to 451,815.93, 677,691.86 and 211,982.49 is: 317,958.70
Step by Step Solution
- Step 1: Write the proportion equation
451,815.93 : 677,691.86 = 211,982.49 : x - Step 2: Convert to fraction form
451,815.93/677,691.86 = 211,982.49/x - Step 3: Cross multiply
451,815.93x = 677,691.86 × 211,982.49 - Step 4: Simplify right side
451,815.93x = 143,658,806,875.62 - Step 5: Solve for x
x = 143,658,806,875.62/451,815.93 - Step 6: Final answer
x = 317,958.70
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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.