Finding the Fourth Proportional to 212,782.82, 318,775.71 and 190,873.94
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Solution
The fourth proportional to 212,782.82, 318,775.71 and 190,873.94 is: 285,953.42
Step by Step Solution
- Step 1: Write the proportion equation
212,782.82 : 318,775.71 = 190,873.94 : x - Step 2: Convert to fraction form
212,782.82/318,775.71 = 190,873.94/x - Step 3: Cross multiply
212,782.82x = 318,775.71 × 190,873.94 - Step 4: Simplify right side
212,782.82x = 60,845,973,992.69 - Step 5: Solve for x
x = 60,845,973,992.69/212,782.82 - Step 6: Final answer
x = 285,953.42
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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.