Finding the Fourth Proportional to 212,493.16, 293,241.63 and 121,852.54
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Solution
The fourth proportional to 212,493.16, 293,241.63 and 121,852.54 is: 168,157.12
Step by Step Solution
- Step 1: Write the proportion equation
212,493.16 : 293,241.63 = 121,852.54 : x - Step 2: Convert to fraction form
212,493.16/293,241.63 = 121,852.54/x - Step 3: Cross multiply
212,493.16x = 293,241.63 × 121,852.54 - Step 4: Simplify right side
212,493.16x = 35,732,237,449.24 - Step 5: Solve for x
x = 35,732,237,449.24/212,493.16 - Step 6: Final answer
x = 168,157.12
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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.