Finding the Fourth Proportional to 211,186.23, 291,457.92 and 120,555.82
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Solution
The fourth proportional to 211,186.23, 291,457.92 and 120,555.82 is: 166,378.98
Step by Step Solution
- Step 1: Write the proportion equation
211,186.23 : 291,457.92 = 120,555.82 : x - Step 2: Convert to fraction form
211,186.23/291,457.92 = 120,555.82/x - Step 3: Cross multiply
211,186.23x = 291,457.92 × 120,555.82 - Step 4: Simplify right side
211,186.23x = 35,136,948,541.09 - Step 5: Solve for x
x = 35,136,948,541.09/211,186.23 - Step 6: Final answer
x = 166,378.98
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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.