Finding the Fourth Proportional to 251,871.08, 347,569.62 and 138,672.68
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Solution
The fourth proportional to 251,871.08, 347,569.62 and 138,672.68 is: 191,361.43
Step by Step Solution
- Step 1: Write the proportion equation
251,871.08 : 347,569.62 = 138,672.68 : x - Step 2: Convert to fraction form
251,871.08/347,569.62 = 138,672.68/x - Step 3: Cross multiply
251,871.08x = 347,569.62 × 138,672.68 - Step 4: Simplify right side
251,871.08x = 48,198,410,691.98 - Step 5: Solve for x
x = 48,198,410,691.98/251,871.08 - Step 6: Final answer
x = 191,361.43
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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.