Finding the Fourth Proportional to 212,621.09, 293,406.30 and 117,125.73
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Solution
The fourth proportional to 212,621.09, 293,406.30 and 117,125.73 is: 161,627.56
Step by Step Solution
- Step 1: Write the proportion equation
212,621.09 : 293,406.30 = 117,125.73 : x - Step 2: Convert to fraction form
212,621.09/293,406.30 = 117,125.73/x - Step 3: Cross multiply
212,621.09x = 293,406.30 × 117,125.73 - Step 4: Simplify right side
212,621.09x = 34,365,427,074.10 - Step 5: Solve for x
x = 34,365,427,074.10/212,621.09 - Step 6: Final answer
x = 161,627.56
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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.