Finding the Fourth Proportional to 211,868.87, 292,306.64 and 121,191.80
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Solution
The fourth proportional to 211,868.87, 292,306.64 and 121,191.80 is: 167,203.27
Step by Step Solution
- Step 1: Write the proportion equation
211,868.87 : 292,306.64 = 121,191.80 : x - Step 2: Convert to fraction form
211,868.87/292,306.64 = 121,191.80/x - Step 3: Cross multiply
211,868.87x = 292,306.64 × 121,191.80 - Step 4: Simplify right side
211,868.87x = 35,425,168,887.30 - Step 5: Solve for x
x = 35,425,168,887.30/211,868.87 - Step 6: Final answer
x = 167,203.27
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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.