Finding the Fourth Proportional to 328,229.42, 492,427.15 and 91,571.99
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Solution
The fourth proportional to 328,229.42, 492,427.15 and 91,571.99 is: 137,381.14
Step by Step Solution
- Step 1: Write the proportion equation
328,229.42 : 492,427.15 = 91,571.99 : x - Step 2: Convert to fraction form
328,229.42/492,427.15 = 91,571.99/x - Step 3: Cross multiply
328,229.42x = 492,427.15 × 91,571.99 - Step 4: Simplify right side
328,229.42x = 45,092,531,364.46 - Step 5: Solve for x
x = 45,092,531,364.46/328,229.42 - Step 6: Final answer
x = 137,381.14
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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.