Finding the Fourth Proportional to 211,640.42, 292,069.32 and 121,011.14
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Solution
The fourth proportional to 211,640.42, 292,069.32 and 121,011.14 is: 166,998.54
Step by Step Solution
- Step 1: Write the proportion equation
211,640.42 : 292,069.32 = 121,011.14 : x - Step 2: Convert to fraction form
211,640.42/292,069.32 = 121,011.14/x - Step 3: Cross multiply
211,640.42x = 292,069.32 × 121,011.14 - Step 4: Simplify right side
211,640.42x = 35,343,641,372.22 - Step 5: Solve for x
x = 35,343,641,372.22/211,640.42 - Step 6: Final answer
x = 166,998.54
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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.