Finding the Fourth Proportional to 211,374.12, 291,687.08 and 126,537.96
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Solution
The fourth proportional to 211,374.12, 291,687.08 and 126,537.96 is: 174,616.87
Step by Step Solution
- Step 1: Write the proportion equation
211,374.12 : 291,687.08 = 126,537.96 : x - Step 2: Convert to fraction form
211,374.12/291,687.08 = 126,537.96/x - Step 3: Cross multiply
211,374.12x = 291,687.08 × 126,537.96 - Step 4: Simplify right side
211,374.12x = 36,909,488,061.56 - Step 5: Solve for x
x = 36,909,488,061.56/211,374.12 - Step 6: Final answer
x = 174,616.87
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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.