Finding the Fourth Proportional to 211,807.75, 292,295.49 and 115,011.73
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Solution
The fourth proportional to 211,807.75, 292,295.49 and 115,011.73 is: 158,716.62
Step by Step Solution
- Step 1: Write the proportion equation
211,807.75 : 292,295.49 = 115,011.73 : x - Step 2: Convert to fraction form
211,807.75/292,295.49 = 115,011.73/x - Step 3: Cross multiply
211,807.75x = 292,295.49 × 115,011.73 - Step 4: Simplify right side
211,807.75x = 33,617,409,976.10 - Step 5: Solve for x
x = 33,617,409,976.10/211,807.75 - Step 6: Final answer
x = 158,716.62
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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.