Finding the Fourth Proportional to 212,784.57, 293,644.62 and 117,294.66
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Solution
The fourth proportional to 212,784.57, 293,644.62 and 117,294.66 is: 161,867.69
Step by Step Solution
- Step 1: Write the proportion equation
212,784.57 : 293,644.62 = 117,294.66 : x - Step 2: Convert to fraction form
212,784.57/293,644.62 = 117,294.66/x - Step 3: Cross multiply
212,784.57x = 293,644.62 × 117,294.66 - Step 4: Simplify right side
212,784.57x = 34,442,945,863.73 - Step 5: Solve for x
x = 34,442,945,863.73/212,784.57 - Step 6: Final answer
x = 161,867.69
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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.