Finding the Fourth Proportional to 210,687.44, 290,746.68 and 115,193.12
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Solution
The fourth proportional to 210,687.44, 290,746.68 and 115,193.12 is: 158,965.42
Step by Step Solution
- Step 1: Write the proportion equation
210,687.44 : 290,746.68 = 115,193.12 : x - Step 2: Convert to fraction form
210,687.44/290,746.68 = 115,193.12/x - Step 3: Cross multiply
210,687.44x = 290,746.68 × 115,193.12 - Step 4: Simplify right side
210,687.44x = 33,492,017,198.84 - Step 5: Solve for x
x = 33,492,017,198.84/210,687.44 - Step 6: Final answer
x = 158,965.42
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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.