Finding the Fourth Proportional to 210,528.44, 290,531.28 and 115,035.12
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Solution
The fourth proportional to 210,528.44, 290,531.28 and 115,035.12 is: 158,749.58
Step by Step Solution
- Step 1: Write the proportion equation
210,528.44 : 290,531.28 = 115,035.12 : x - Step 2: Convert to fraction form
210,528.44/290,531.28 = 115,035.12/x - Step 3: Cross multiply
210,528.44x = 290,531.28 × 115,035.12 - Step 4: Simplify right side
210,528.44x = 33,421,300,658.55 - Step 5: Solve for x
x = 33,421,300,658.55/210,528.44 - Step 6: Final answer
x = 158,749.58
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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.