Finding the Fourth Proportional to 212,685.64, 293,494.18 and 117,202.12
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Solution
The fourth proportional to 212,685.64, 293,494.18 and 117,202.12 is: 161,732.31
Step by Step Solution
- Step 1: Write the proportion equation
212,685.64 : 293,494.18 = 117,202.12 : x - Step 2: Convert to fraction form
212,685.64/293,494.18 = 117,202.12/x - Step 3: Cross multiply
212,685.64x = 293,494.18 × 117,202.12 - Step 4: Simplify right side
212,685.64x = 34,398,140,103.66 - Step 5: Solve for x
x = 34,398,140,103.66/212,685.64 - Step 6: Final answer
x = 161,732.31
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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.