Finding the Fourth Proportional to 212,658.37, 293,468.39 and 117,165.06
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Solution
The fourth proportional to 212,658.37, 293,468.39 and 117,165.06 is: 161,687.70
Step by Step Solution
- Step 1: Write the proportion equation
212,658.37 : 293,468.39 = 117,165.06 : x - Step 2: Convert to fraction form
212,658.37/293,468.39 = 117,165.06/x - Step 3: Cross multiply
212,658.37x = 293,468.39 × 117,165.06 - Step 4: Simplify right side
212,658.37x = 34,384,241,670.30 - Step 5: Solve for x
x = 34,384,241,670.30/212,658.37 - Step 6: Final answer
x = 161,687.70
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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.