Finding the Fourth Proportional to 212,729.82, 293,567.19 and 115,933.68
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Solution
The fourth proportional to 212,729.82, 293,567.19 and 115,933.68 is: 159,988.50
Step by Step Solution
- Step 1: Write the proportion equation
212,729.82 : 293,567.19 = 115,933.68 : x - Step 2: Convert to fraction form
212,729.82/293,567.19 = 115,933.68/x - Step 3: Cross multiply
212,729.82x = 293,567.19 × 115,933.68 - Step 4: Simplify right side
212,729.82x = 34,034,324,663.96 - Step 5: Solve for x
x = 34,034,324,663.96/212,729.82 - Step 6: Final answer
x = 159,988.50
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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.