Finding the Fourth Proportional to 211,121.96, 291,348.72 and 114,326.88
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Solution
The fourth proportional to 211,121.96, 291,348.72 and 114,326.88 is: 157,771.32
Step by Step Solution
- Step 1: Write the proportion equation
211,121.96 : 291,348.72 = 114,326.88 : x - Step 2: Convert to fraction form
211,121.96/291,348.72 = 114,326.88/x - Step 3: Cross multiply
211,121.96x = 291,348.72 × 114,326.88 - Step 4: Simplify right side
211,121.96x = 33,308,990,149.59 - Step 5: Solve for x
x = 33,308,990,149.59/211,121.96 - Step 6: Final answer
x = 157,771.32
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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.