Finding the Fourth Proportional to 279,093.18, 385,136.84 and 158,242.56
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Solution
The fourth proportional to 279,093.18, 385,136.84 and 158,242.56 is: 218,368.07
Step by Step Solution
- Step 1: Write the proportion equation
279,093.18 : 385,136.84 = 158,242.56 : x - Step 2: Convert to fraction form
279,093.18/385,136.84 = 158,242.56/x - Step 3: Cross multiply
279,093.18x = 385,136.84 × 158,242.56 - Step 4: Simplify right side
279,093.18x = 60,945,039,511.91 - Step 5: Solve for x
x = 60,945,039,511.91/279,093.18 - Step 6: Final answer
x = 218,368.07
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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.