Finding the Fourth Proportional to 212,965.36, 319,199.64 and 160,205.20
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Solution
The fourth proportional to 212,965.36, 319,199.64 and 160,205.20 is: 240,120.94
Step by Step Solution
- Step 1: Write the proportion equation
212,965.36 : 319,199.64 = 160,205.20 : x - Step 2: Convert to fraction form
212,965.36/319,199.64 = 160,205.20/x - Step 3: Cross multiply
212,965.36x = 319,199.64 × 160,205.20 - Step 4: Simplify right side
212,965.36x = 51,137,442,166.13 - Step 5: Solve for x
x = 51,137,442,166.13/212,965.36 - Step 6: Final answer
x = 240,120.94
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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.