Finding the Fourth Proportional to 211,671.36, 292,119.60 and 139,926.96
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Solution
The fourth proportional to 211,671.36, 292,119.60 and 139,926.96 is: 193,107.88
Step by Step Solution
- Step 1: Write the proportion equation
211,671.36 : 292,119.60 = 139,926.96 : x - Step 2: Convert to fraction form
211,671.36/292,119.60 = 139,926.96/x - Step 3: Cross multiply
211,671.36x = 292,119.60 × 139,926.96 - Step 4: Simplify right side
211,671.36x = 40,875,407,584.42 - Step 5: Solve for x
x = 40,875,407,584.42/211,671.36 - Step 6: Final answer
x = 193,107.88
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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.