Finding the Fourth Proportional to 215,738.01, 297,718.79 and 120,242.97
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Solution
The fourth proportional to 215,738.01, 297,718.79 and 120,242.97 is: 165,935.48
Step by Step Solution
- Step 1: Write the proportion equation
215,738.01 : 297,718.79 = 120,242.97 : x - Step 2: Convert to fraction form
215,738.01/297,718.79 = 120,242.97/x - Step 3: Cross multiply
215,738.01x = 297,718.79 × 120,242.97 - Step 4: Simplify right side
215,738.01x = 35,798,590,933.19 - Step 5: Solve for x
x = 35,798,590,933.19/215,738.01 - Step 6: Final answer
x = 165,935.48
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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.