Finding the Fourth Proportional to 211,415.48, 291,751.14 and 115,921.96
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Solution
The fourth proportional to 211,415.48, 291,751.14 and 115,921.96 is: 159,971.09
Step by Step Solution
- Step 1: Write the proportion equation
211,415.48 : 291,751.14 = 115,921.96 : x - Step 2: Convert to fraction form
211,415.48/291,751.14 = 115,921.96/x - Step 3: Cross multiply
211,415.48x = 291,751.14 × 115,921.96 - Step 4: Simplify right side
211,415.48x = 33,820,363,981.03 - Step 5: Solve for x
x = 33,820,363,981.03/211,415.48 - Step 6: Final answer
x = 159,971.09
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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.