Finding the Fourth Proportional to 211,874.88, 292,314.92 and 121,197.81
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Solution
The fourth proportional to 211,874.88, 292,314.92 and 121,197.81 is: 167,211.55
Step by Step Solution
- Step 1: Write the proportion equation
211,874.88 : 292,314.92 = 121,197.81 : x - Step 2: Convert to fraction form
211,874.88/292,314.92 = 121,197.81/x - Step 3: Cross multiply
211,874.88x = 292,314.92 × 121,197.81 - Step 4: Simplify right side
211,874.88x = 35,427,927,528.34 - Step 5: Solve for x
x = 35,427,927,528.34/211,874.88 - Step 6: Final answer
x = 167,211.55
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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.