Finding the Fourth Proportional to 212,984.90, 293,909.26 and 122,277.02
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Solution
The fourth proportional to 212,984.90, 293,909.26 and 122,277.02 is: 168,736.60
Step by Step Solution
- Step 1: Write the proportion equation
212,984.90 : 293,909.26 = 122,277.02 : x - Step 2: Convert to fraction form
212,984.90/293,909.26 = 122,277.02/x - Step 3: Cross multiply
212,984.90x = 293,909.26 × 122,277.02 - Step 4: Simplify right side
212,984.90x = 35,938,347,851.82 - Step 5: Solve for x
x = 35,938,347,851.82/212,984.90 - Step 6: Final answer
x = 168,736.60
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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.