Finding the Fourth Proportional to 211,967.19, 292,527.81 and 121,321.23
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Solution
The fourth proportional to 211,967.19, 292,527.81 and 121,321.23 is: 167,430.78
Step by Step Solution
- Step 1: Write the proportion equation
211,967.19 : 292,527.81 = 121,321.23 : x - Step 2: Convert to fraction form
211,967.19/292,527.81 = 121,321.23/x - Step 3: Cross multiply
211,967.19x = 292,527.81 × 121,321.23 - Step 4: Simplify right side
211,967.19x = 35,489,832,255.77 - Step 5: Solve for x
x = 35,489,832,255.77/211,967.19 - Step 6: Final answer
x = 167,430.78
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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.