Finding the Fourth Proportional to 212,965.95, 319,177.57 and 113,173.95
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Solution
The fourth proportional to 212,965.95, 319,177.57 and 113,173.95 is: 169,616.72
Step by Step Solution
- Step 1: Write the proportion equation
212,965.95 : 319,177.57 = 113,173.95 : x - Step 2: Convert to fraction form
212,965.95/319,177.57 = 113,173.95/x - Step 3: Cross multiply
212,965.95x = 319,177.57 × 113,173.95 - Step 4: Simplify right side
212,965.95x = 36,122,586,348.30 - Step 5: Solve for x
x = 36,122,586,348.30/212,965.95 - Step 6: Final answer
x = 169,616.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.