Finding the Fourth Proportional to 211,021.14, 291,214.26 and 115,527.54
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Solution
The fourth proportional to 211,021.14, 291,214.26 and 115,527.54 is: 159,430.79
Step by Step Solution
- Step 1: Write the proportion equation
211,021.14 : 291,214.26 = 115,527.54 : x - Step 2: Convert to fraction form
211,021.14/291,214.26 = 115,527.54/x - Step 3: Cross multiply
211,021.14x = 291,214.26 × 115,527.54 - Step 4: Simplify right side
211,021.14x = 33,643,267,070.72 - Step 5: Solve for x
x = 33,643,267,070.72/211,021.14 - Step 6: Final answer
x = 159,430.79
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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.