Finding the Fourth Proportional to 208,157.08, 287,259.13 and 122,117.53
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Solution
The fourth proportional to 208,157.08, 287,259.13 and 122,117.53 is: 168,523.58
Step by Step Solution
- Step 1: Write the proportion equation
208,157.08 : 287,259.13 = 122,117.53 : x - Step 2: Convert to fraction form
208,157.08/287,259.13 = 122,117.53/x - Step 3: Cross multiply
208,157.08x = 287,259.13 × 122,117.53 - Step 4: Simplify right side
208,157.08x = 35,079,376,080.23 - Step 5: Solve for x
x = 35,079,376,080.23/208,157.08 - Step 6: Final answer
x = 168,523.58
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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.