Finding the Fourth Proportional to 208,101.98, 287,181.48 and 112,608.68
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Solution
The fourth proportional to 208,101.98, 287,181.48 and 112,608.68 is: 155,400.38
Step by Step Solution
- Step 1: Write the proportion equation
208,101.98 : 287,181.48 = 112,608.68 : x - Step 2: Convert to fraction form
208,101.98/287,181.48 = 112,608.68/x - Step 3: Cross multiply
208,101.98x = 287,181.48 × 112,608.68 - Step 4: Simplify right side
208,101.98x = 32,339,127,383.25 - Step 5: Solve for x
x = 32,339,127,383.25/208,101.98 - Step 6: Final answer
x = 155,400.38
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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.