Finding the Fourth Proportional to 212,266.88, 318,137.88 and 107,115.92
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Solution
The fourth proportional to 212,266.88, 318,137.88 and 107,115.92 is: 160,541.45
Step by Step Solution
- Step 1: Write the proportion equation
212,266.88 : 318,137.88 = 107,115.92 : x - Step 2: Convert to fraction form
212,266.88/318,137.88 = 107,115.92/x - Step 3: Cross multiply
212,266.88x = 318,137.88 × 107,115.92 - Step 4: Simplify right side
212,266.88x = 34,077,631,703.05 - Step 5: Solve for x
x = 34,077,631,703.05/212,266.88 - Step 6: Final answer
x = 160,541.45
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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.