Finding the Fourth Proportional to 202,368.85, 279,269.43 and 111,724.99
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Solution
The fourth proportional to 202,368.85, 279,269.43 and 111,724.99 is: 154,180.71
Step by Step Solution
- Step 1: Write the proportion equation
202,368.85 : 279,269.43 = 111,724.99 : x - Step 2: Convert to fraction form
202,368.85/279,269.43 = 111,724.99/x - Step 3: Cross multiply
202,368.85x = 279,269.43 × 111,724.99 - Step 4: Simplify right side
202,368.85x = 31,201,373,715.43 - Step 5: Solve for x
x = 31,201,373,715.43/202,368.85 - Step 6: Final answer
x = 154,180.71
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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.