Finding the Fourth Proportional to 198,399.29, 273,792.99 and 107,756.10
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Solution
The fourth proportional to 198,399.29, 273,792.99 and 107,756.10 is: 148,704.49
Step by Step Solution
- Step 1: Write the proportion equation
198,399.29 : 273,792.99 = 107,756.10 : x - Step 2: Convert to fraction form
198,399.29/273,792.99 = 107,756.10/x - Step 3: Cross multiply
198,399.29x = 273,792.99 × 107,756.10 - Step 4: Simplify right side
198,399.29x = 29,502,864,809.74 - Step 5: Solve for x
x = 29,502,864,809.74/198,399.29 - Step 6: Final answer
x = 148,704.49
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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.