Finding the Fourth Proportional to 198,564.20, 274,020.70 and 107,920.19
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Solution
The fourth proportional to 198,564.20, 274,020.70 and 107,920.19 is: 148,931.01
Step by Step Solution
- Step 1: Write the proportion equation
198,564.20 : 274,020.70 = 107,920.19 : x - Step 2: Convert to fraction form
198,564.20/274,020.70 = 107,920.19/x - Step 3: Cross multiply
198,564.20x = 274,020.70 × 107,920.19 - Step 4: Simplify right side
198,564.20x = 29,572,366,423.18 - Step 5: Solve for x
x = 29,572,366,423.18/198,564.20 - Step 6: Final answer
x = 148,931.01
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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.