Finding the Fourth Proportional to 211,121.82, 291,337.20 and 115,610.09
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Solution
The fourth proportional to 211,121.82, 291,337.20 and 115,610.09 is: 159,535.94
Step by Step Solution
- Step 1: Write the proportion equation
211,121.82 : 291,337.20 = 115,610.09 : x - Step 2: Convert to fraction form
211,121.82/291,337.20 = 115,610.09/x - Step 3: Cross multiply
211,121.82x = 291,337.20 × 115,610.09 - Step 4: Simplify right side
211,121.82x = 33,681,518,455.66 - Step 5: Solve for x
x = 33,681,518,455.66/211,121.82 - Step 6: Final answer
x = 159,535.94
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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.