Finding the Fourth Proportional to 222,577.09, 307,155.31 and 121,975.09
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Solution
The fourth proportional to 222,577.09, 307,155.31 and 121,975.09 is: 168,325.04
Step by Step Solution
- Step 1: Write the proportion equation
222,577.09 : 307,155.31 = 121,975.09 : x - Step 2: Convert to fraction form
222,577.09/307,155.31 = 121,975.09/x - Step 3: Cross multiply
222,577.09x = 307,155.31 × 121,975.09 - Step 4: Simplify right side
222,577.09x = 37,465,296,581.23 - Step 5: Solve for x
x = 37,465,296,581.23/222,577.09 - Step 6: Final answer
x = 168,325.04
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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.