Finding the Fourth Proportional to 212,979.18, 293,911.29 and 117,486.12
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Solution
The fourth proportional to 212,979.18, 293,911.29 and 117,486.12 is: 162,130.86
Step by Step Solution
- Step 1: Write the proportion equation
212,979.18 : 293,911.29 = 117,486.12 : x - Step 2: Convert to fraction form
212,979.18/293,911.29 = 117,486.12/x - Step 3: Cross multiply
212,979.18x = 293,911.29 × 117,486.12 - Step 4: Simplify right side
212,979.18x = 34,530,497,086.29 - Step 5: Solve for x
x = 34,530,497,086.29/212,979.18 - Step 6: Final answer
x = 162,130.86
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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.