Finding the Fourth Proportional to 215,851.70, 323,777.55 and 68,107.70
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Solution
The fourth proportional to 215,851.70, 323,777.55 and 68,107.70 is: 102,161.55
Step by Step Solution
- Step 1: Write the proportion equation
215,851.70 : 323,777.55 = 68,107.70 : x - Step 2: Convert to fraction form
215,851.70/323,777.55 = 68,107.70/x - Step 3: Cross multiply
215,851.70x = 323,777.55 × 68,107.70 - Step 4: Simplify right side
215,851.70x = 22,051,744,242.14 - Step 5: Solve for x
x = 22,051,744,242.14/215,851.70 - Step 6: Final answer
x = 102,161.55
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1.5x scale
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.