Finding the Fourth Proportional to 208,158.08, 287,260.51 and 122,118.53
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Solution
The fourth proportional to 208,158.08, 287,260.51 and 122,118.53 is: 168,524.96
Step by Step Solution
- Step 1: Write the proportion equation
208,158.08 : 287,260.51 = 122,118.53 : x - Step 2: Convert to fraction form
208,158.08/287,260.51 = 122,118.53/x - Step 3: Cross multiply
208,158.08x = 287,260.51 × 122,118.53 - Step 4: Simplify right side
208,158.08x = 35,079,831,208.25 - Step 5: Solve for x
x = 35,079,831,208.25/208,158.08 - Step 6: Final answer
x = 168,524.96
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1.5x scale
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.