Finding the Fourth Proportional to 221,094.96, 331,560.84 and 78,902.19
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Solution
The fourth proportional to 221,094.96, 331,560.84 and 78,902.19 is: 118,324.16
Step by Step Solution
- Step 1: Write the proportion equation
221,094.96 : 331,560.84 = 78,902.19 : x - Step 2: Convert to fraction form
221,094.96/331,560.84 = 78,902.19/x - Step 3: Cross multiply
221,094.96x = 331,560.84 × 78,902.19 - Step 4: Simplify right side
221,094.96x = 26,160,876,394.24 - Step 5: Solve for x
x = 26,160,876,394.24/221,094.96 - Step 6: Final answer
x = 118,324.16
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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.