Finding the Fourth Proportional to 212,782.66, 293,639.99 and 117,290.95
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Solution
The fourth proportional to 212,782.66, 293,639.99 and 117,290.95 is: 161,861.46
Step by Step Solution
- Step 1: Write the proportion equation
212,782.66 : 293,639.99 = 117,290.95 : x - Step 2: Convert to fraction form
212,782.66/293,639.99 = 117,290.95/x - Step 3: Cross multiply
212,782.66x = 293,639.99 × 117,290.95 - Step 4: Simplify right side
212,782.66x = 34,441,311,916.89 - Step 5: Solve for x
x = 34,441,311,916.89/212,782.66 - Step 6: Final answer
x = 161,861.46
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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.