Finding the Fourth Proportional to 212,821.97, 293,696.60 and 117,332.09
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Solution
The fourth proportional to 212,821.97, 293,696.60 and 117,332.09 is: 161,919.54
Step by Step Solution
- Step 1: Write the proportion equation
212,821.97 : 293,696.60 = 117,332.09 : x - Step 2: Convert to fraction form
212,821.97/293,696.60 = 117,332.09/x - Step 3: Cross multiply
212,821.97x = 293,696.60 × 117,332.09 - Step 4: Simplify right side
212,821.97x = 34,460,033,848.75 - Step 5: Solve for x
x = 34,460,033,848.75/212,821.97 - Step 6: Final answer
x = 161,919.54
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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.