Finding the Fourth Proportional to 211,114.74, 291,372.36 and 120,474.54
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Solution
The fourth proportional to 211,114.74, 291,372.36 and 120,474.54 is: 166,274.28
Step by Step Solution
- Step 1: Write the proportion equation
211,114.74 : 291,372.36 = 120,474.54 : x - Step 2: Convert to fraction form
211,114.74/291,372.36 = 120,474.54/x - Step 3: Cross multiply
211,114.74x = 291,372.36 × 120,474.54 - Step 4: Simplify right side
211,114.74x = 35,102,951,039.71 - Step 5: Solve for x
x = 35,102,951,039.71/211,114.74 - Step 6: Final answer
x = 166,274.28
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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.