Finding the Fourth Proportional to 212,172.42, 292,715.07 and 121,479.92
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Solution
The fourth proportional to 212,172.42, 292,715.07 and 121,479.92 is: 167,594.84
Step by Step Solution
- Step 1: Write the proportion equation
212,172.42 : 292,715.07 = 121,479.92 : x - Step 2: Convert to fraction form
212,172.42/292,715.07 = 121,479.92/x - Step 3: Cross multiply
212,172.42x = 292,715.07 × 121,479.92 - Step 4: Simplify right side
212,172.42x = 35,559,001,822.82 - Step 5: Solve for x
x = 35,559,001,822.82/212,172.42 - Step 6: Final answer
x = 167,594.84
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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.