Finding the Fourth Proportional to 379,579.08, 523,765.62 and 216,239.88
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Solution
The fourth proportional to 379,579.08, 523,765.62 and 216,239.88 is: 298,380.55
Step by Step Solution
- Step 1: Write the proportion equation
379,579.08 : 523,765.62 = 216,239.88 : x - Step 2: Convert to fraction form
379,579.08/523,765.62 = 216,239.88/x - Step 3: Cross multiply
379,579.08x = 523,765.62 × 216,239.88 - Step 4: Simplify right side
379,579.08x = 113,259,014,816.93 - Step 5: Solve for x
x = 113,259,014,816.93/379,579.08 - Step 6: Final answer
x = 298,380.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.