Finding the Fourth Proportional to 207,329.40, 286,117.65 and 122,446.26
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Solution
The fourth proportional to 207,329.40, 286,117.65 and 122,446.26 is: 168,977.66
Step by Step Solution
- Step 1: Write the proportion equation
207,329.40 : 286,117.65 = 122,446.26 : x - Step 2: Convert to fraction form
207,329.40/286,117.65 = 122,446.26/x - Step 3: Cross multiply
207,329.40x = 286,117.65 × 122,446.26 - Step 4: Simplify right side
207,329.40x = 35,034,036,162.49 - Step 5: Solve for x
x = 35,034,036,162.49/207,329.40 - Step 6: Final answer
x = 168,977.66
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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.