Finding the Fourth Proportional to 210,612.57, 290,645.48 and 115,119.26
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Solution
The fourth proportional to 210,612.57, 290,645.48 and 115,119.26 is: 158,864.65
Step by Step Solution
- Step 1: Write the proportion equation
210,612.57 : 290,645.48 = 115,119.26 : x - Step 2: Convert to fraction form
210,612.57/290,645.48 = 115,119.26/x - Step 3: Cross multiply
210,612.57x = 290,645.48 × 115,119.26 - Step 4: Simplify right side
210,612.57x = 33,458,892,579.94 - Step 5: Solve for x
x = 33,458,892,579.94/210,612.57 - Step 6: Final answer
x = 158,864.65
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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.