Finding the Fourth Proportional to 212,907.62, 293,802.60 and 122,199.74
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Solution
The fourth proportional to 212,907.62, 293,802.60 and 122,199.74 is: 168,629.95
Step by Step Solution
- Step 1: Write the proportion equation
212,907.62 : 293,802.60 = 122,199.74 : x - Step 2: Convert to fraction form
212,907.62/293,802.60 = 122,199.74/x - Step 3: Cross multiply
212,907.62x = 293,802.60 × 122,199.74 - Step 4: Simplify right side
212,907.62x = 35,902,599,862.31 - Step 5: Solve for x
x = 35,902,599,862.31/212,907.62 - Step 6: Final answer
x = 168,629.95
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1.5x scale
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.