Finding the Fourth Proportional to 211,987.26, 292,558.68 and 121,371.66
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Solution
The fourth proportional to 211,987.26, 292,558.68 and 121,371.66 is: 167,502.20
Step by Step Solution
- Step 1: Write the proportion equation
211,987.26 : 292,558.68 = 121,371.66 : x - Step 2: Convert to fraction form
211,987.26/292,558.68 = 121,371.66/x - Step 3: Cross multiply
211,987.26x = 292,558.68 × 121,371.66 - Step 4: Simplify right side
211,987.26x = 35,508,332,639.01 - Step 5: Solve for x
x = 35,508,332,639.01/211,987.26 - Step 6: Final answer
x = 167,502.20
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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.