Finding the Fourth Proportional to 211,181.31, 291,357.36 and 120,471.84
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Solution
The fourth proportional to 211,181.31, 291,357.36 and 120,471.84 is: 166,209.58
Step by Step Solution
- Step 1: Write the proportion equation
211,181.31 : 291,357.36 = 120,471.84 : x - Step 2: Convert to fraction form
211,181.31/291,357.36 = 120,471.84/x - Step 3: Cross multiply
211,181.31x = 291,357.36 × 120,471.84 - Step 4: Simplify right side
211,181.31x = 35,100,357,256.74 - Step 5: Solve for x
x = 35,100,357,256.74/211,181.31 - Step 6: Final answer
x = 166,209.58
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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.