Finding the Fourth Proportional to 211,036.05, 291,231.45 and 115,543.53
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Solution
The fourth proportional to 211,036.05, 291,231.45 and 115,543.53 is: 159,451.00
Step by Step Solution
- Step 1: Write the proportion equation
211,036.05 : 291,231.45 = 115,543.53 : x - Step 2: Convert to fraction form
211,036.05/291,231.45 = 115,543.53/x - Step 3: Cross multiply
211,036.05x = 291,231.45 × 115,543.53 - Step 4: Simplify right side
211,036.05x = 33,649,909,780.02 - Step 5: Solve for x
x = 33,649,909,780.02/211,036.05 - Step 6: Final answer
x = 159,451.00
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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.