Finding the Fourth Proportional to 212,916.58, 319,320.36 and 63,121.84
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Solution
The fourth proportional to 212,916.58, 319,320.36 and 63,121.84 is: 94,666.60
Step by Step Solution
- Step 1: Write the proportion equation
212,916.58 : 319,320.36 = 63,121.84 : x - Step 2: Convert to fraction form
212,916.58/319,320.36 = 63,121.84/x - Step 3: Cross multiply
212,916.58x = 319,320.36 × 63,121.84 - Step 4: Simplify right side
212,916.58x = 20,156,088,672.66 - Step 5: Solve for x
x = 20,156,088,672.66/212,916.58 - Step 6: Final answer
x = 94,666.60
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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.