Finding the Fourth Proportional to 202,993.81, 280,129.39 and 112,349.95
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Solution
The fourth proportional to 202,993.81, 280,129.39 and 112,349.95 is: 155,041.79
Step by Step Solution
- Step 1: Write the proportion equation
202,993.81 : 280,129.39 = 112,349.95 : x - Step 2: Convert to fraction form
202,993.81/280,129.39 = 112,349.95/x - Step 3: Cross multiply
202,993.81x = 280,129.39 × 112,349.95 - Step 4: Simplify right side
202,993.81x = 31,472,522,960.03 - Step 5: Solve for x
x = 31,472,522,960.03/202,993.81 - Step 6: Final answer
x = 155,041.79
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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.