Finding the Fourth Proportional to 211,189.20, 291,441.08 and 126,306.26
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Solution
The fourth proportional to 211,189.20, 291,441.08 and 126,306.26 is: 174,302.63
Step by Step Solution
- Step 1: Write the proportion equation
211,189.20 : 291,441.08 = 126,306.26 : x - Step 2: Convert to fraction form
211,189.20/291,441.08 = 126,306.26/x - Step 3: Cross multiply
211,189.20x = 291,441.08 × 126,306.26 - Step 4: Simplify right side
211,189.20x = 36,810,832,825.16 - Step 5: Solve for x
x = 36,810,832,825.16/211,189.20 - Step 6: Final answer
x = 174,302.63
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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.