Finding the Fourth Proportional to 211,465.42, 291,820.94 and 120,849.10
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Solution
The fourth proportional to 211,465.42, 291,820.94 and 120,849.10 is: 166,770.99
Step by Step Solution
- Step 1: Write the proportion equation
211,465.42 : 291,820.94 = 120,849.10 : x - Step 2: Convert to fraction form
211,465.42/291,820.94 = 120,849.10/x - Step 3: Cross multiply
211,465.42x = 291,820.94 × 120,849.10 - Step 4: Simplify right side
211,465.42x = 35,266,297,960.15 - Step 5: Solve for x
x = 35,266,297,960.15/211,465.42 - Step 6: Final answer
x = 166,770.99
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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.