Finding the Fourth Proportional to 284,295.29, 392,319.99 and 156,968.15
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Solution
The fourth proportional to 284,295.29, 392,319.99 and 156,968.15 is: 216,611.90
Step by Step Solution
- Step 1: Write the proportion equation
284,295.29 : 392,319.99 = 156,968.15 : x - Step 2: Convert to fraction form
284,295.29/392,319.99 = 156,968.15/x - Step 3: Cross multiply
284,295.29x = 392,319.99 × 156,968.15 - Step 4: Simplify right side
284,295.29x = 61,581,741,076.72 - Step 5: Solve for x
x = 61,581,741,076.72/284,295.29 - Step 6: Final answer
x = 216,611.90
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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.