Finding the Fourth Proportional to 212,888.21, 293,443.07 and 155,436.44
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Solution
The fourth proportional to 212,888.21, 293,443.07 and 155,436.44 is: 214,252.09
Step by Step Solution
- Step 1: Write the proportion equation
212,888.21 : 293,443.07 = 155,436.44 : x - Step 2: Convert to fraction form
212,888.21/293,443.07 = 155,436.44/x - Step 3: Cross multiply
212,888.21x = 293,443.07 × 155,436.44 - Step 4: Simplify right side
212,888.21x = 45,611,743,899.07 - Step 5: Solve for x
x = 45,611,743,899.07/212,888.21 - Step 6: Final answer
x = 214,252.09
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1.5x scale
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.