Finding the Fourth Proportional to 211,876.41, 292,318.09 and 119,983.13
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Solution
The fourth proportional to 211,876.41, 292,318.09 and 119,983.13 is: 165,536.31
Step by Step Solution
- Step 1: Write the proportion equation
211,876.41 : 292,318.09 = 119,983.13 : x - Step 2: Convert to fraction form
211,876.41/292,318.09 = 119,983.13/x - Step 3: Cross multiply
211,876.41x = 292,318.09 × 119,983.13 - Step 4: Simplify right side
211,876.41x = 35,073,239,393.82 - Step 5: Solve for x
x = 35,073,239,393.82/211,876.41 - Step 6: Final answer
x = 165,536.31
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1.5x scale
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.