Finding the Fourth Proportional to 198,781.68, 274,328.28 and 113,898.96
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Solution
The fourth proportional to 198,781.68, 274,328.28 and 113,898.96 is: 157,186.04
Step by Step Solution
- Step 1: Write the proportion equation
198,781.68 : 274,328.28 = 113,898.96 : x - Step 2: Convert to fraction form
198,781.68/274,328.28 = 113,898.96/x - Step 3: Cross multiply
198,781.68x = 274,328.28 × 113,898.96 - Step 4: Simplify right side
198,781.68x = 31,245,705,790.59 - Step 5: Solve for x
x = 31,245,705,790.59/198,781.68 - Step 6: Final answer
x = 157,186.04
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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.