Finding the Fourth Proportional to 198,020.19, 273,282.35 and 113,135.43
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Solution
The fourth proportional to 198,020.19, 273,282.35 and 113,135.43 is: 156,135.17
Step by Step Solution
- Step 1: Write the proportion equation
198,020.19 : 273,282.35 = 113,135.43 : x - Step 2: Convert to fraction form
198,020.19/273,282.35 = 113,135.43/x - Step 3: Cross multiply
198,020.19x = 273,282.35 × 113,135.43 - Step 4: Simplify right side
198,020.19x = 30,917,916,178.66 - Step 5: Solve for x
x = 30,917,916,178.66/198,020.19 - Step 6: Final answer
x = 156,135.17
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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.