Finding the Fourth Proportional to 212,231.25, 292,920.72 and 121,647.93
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Solution
The fourth proportional to 212,231.25, 292,920.72 and 121,647.93 is: 167,897.99
Step by Step Solution
- Step 1: Write the proportion equation
212,231.25 : 292,920.72 = 121,647.93 : x - Step 2: Convert to fraction form
212,231.25/292,920.72 = 121,647.93/x - Step 3: Cross multiply
212,231.25x = 292,920.72 × 121,647.93 - Step 4: Simplify right side
212,231.25x = 35,633,199,242.11 - Step 5: Solve for x
x = 35,633,199,242.11/212,231.25 - Step 6: Final answer
x = 167,897.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.