Finding the Fourth Proportional to 198,773.85, 274,302.99 and 113,885.45
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Solution
The fourth proportional to 198,773.85, 274,302.99 and 113,885.45 is: 157,159.09
Step by Step Solution
- Step 1: Write the proportion equation
198,773.85 : 274,302.99 = 113,885.45 : x - Step 2: Convert to fraction form
198,773.85/274,302.99 = 113,885.45/x - Step 3: Cross multiply
198,773.85x = 274,302.99 × 113,885.45 - Step 4: Simplify right side
198,773.85x = 31,239,118,080.98 - Step 5: Solve for x
x = 31,239,118,080.98/198,773.85 - Step 6: Final answer
x = 157,159.09
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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.