Finding the Fourth Proportional to 212,817.24, 293,687.82 and 117,322.92
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Solution
The fourth proportional to 212,817.24, 293,687.82 and 117,322.92 is: 161,905.65
Step by Step Solution
- Step 1: Write the proportion equation
212,817.24 : 293,687.82 = 117,322.92 : x - Step 2: Convert to fraction form
212,817.24/293,687.82 = 117,322.92/x - Step 3: Cross multiply
212,817.24x = 293,687.82 × 117,322.92 - Step 4: Simplify right side
212,817.24x = 34,456,312,610.83 - Step 5: Solve for x
x = 34,456,312,610.83/212,817.24 - Step 6: Final answer
x = 161,905.65
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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.