Finding the Fourth Proportional to 211,484.09, 291,855.48 and 115,991.17
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Solution
The fourth proportional to 211,484.09, 291,855.48 and 115,991.17 is: 160,071.89
Step by Step Solution
- Step 1: Write the proportion equation
211,484.09 : 291,855.48 = 115,991.17 : x - Step 2: Convert to fraction form
211,484.09/291,855.48 = 115,991.17/x - Step 3: Cross multiply
211,484.09x = 291,855.48 × 115,991.17 - Step 4: Simplify right side
211,484.09x = 33,852,658,596.11 - Step 5: Solve for x
x = 33,852,658,596.11/211,484.09 - Step 6: Final answer
x = 160,071.89
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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.