Finding the Fourth Proportional to 211,953.82, 292,495.44 and 121,309.42
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Solution
The fourth proportional to 211,953.82, 292,495.44 and 121,309.42 is: 167,406.52
Step by Step Solution
- Step 1: Write the proportion equation
211,953.82 : 292,495.44 = 121,309.42 : x - Step 2: Convert to fraction form
211,953.82/292,495.44 = 121,309.42/x - Step 3: Cross multiply
211,953.82x = 292,495.44 × 121,309.42 - Step 4: Simplify right side
211,953.82x = 35,482,452,179.04 - Step 5: Solve for x
x = 35,482,452,179.04/211,953.82 - Step 6: Final answer
x = 167,406.52
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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.