Finding the Fourth Proportional to 202,155.80, 303,233.70 and 68,991.80
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Solution
The fourth proportional to 202,155.80, 303,233.70 and 68,991.80 is: 103,487.70
Step by Step Solution
- Step 1: Write the proportion equation
202,155.80 : 303,233.70 = 68,991.80 : x - Step 2: Convert to fraction form
202,155.80/303,233.70 = 68,991.80/x - Step 3: Cross multiply
202,155.80x = 303,233.70 × 68,991.80 - Step 4: Simplify right side
202,155.80x = 20,920,638,783.66 - Step 5: Solve for x
x = 20,920,638,783.66/202,155.80 - Step 6: Final answer
x = 103,487.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.