Finding the Fourth Proportional to 211,816.63, 292,233.86 and 135,380.47
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Solution
The fourth proportional to 211,816.63, 292,233.86 and 135,380.47 is: 186,778.33
Step by Step Solution
- Step 1: Write the proportion equation
211,816.63 : 292,233.86 = 135,380.47 : x - Step 2: Convert to fraction form
211,816.63/292,233.86 = 135,380.47/x - Step 3: Cross multiply
211,816.63x = 292,233.86 × 135,380.47 - Step 4: Simplify right side
211,816.63x = 39,562,755,178.64 - Step 5: Solve for x
x = 39,562,755,178.64/211,816.63 - Step 6: Final answer
x = 186,778.33
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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.