Finding the Fourth Proportional to 223,506.09, 308,449.62 and 138,650.49
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Solution
The fourth proportional to 223,506.09, 308,449.62 and 138,650.49 is: 191,344.63
Step by Step Solution
- Step 1: Write the proportion equation
223,506.09 : 308,449.62 = 138,650.49 : x - Step 2: Convert to fraction form
223,506.09/308,449.62 = 138,650.49/x - Step 3: Cross multiply
223,506.09x = 308,449.62 × 138,650.49 - Step 4: Simplify right side
223,506.09x = 42,766,690,953.31 - Step 5: Solve for x
x = 42,766,690,953.31/223,506.09 - Step 6: Final answer
x = 191,344.63
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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.