Finding the Fourth Proportional to 212,785.16, 293,643.58 and 117,293.96
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Solution
The fourth proportional to 212,785.16, 293,643.58 and 117,293.96 is: 161,865.70
Step by Step Solution
- Step 1: Write the proportion equation
212,785.16 : 293,643.58 = 117,293.96 : x - Step 2: Convert to fraction form
212,785.16/293,643.58 = 117,293.96/x - Step 3: Cross multiply
212,785.16x = 293,643.58 × 117,293.96 - Step 4: Simplify right side
212,785.16x = 34,442,618,326.78 - Step 5: Solve for x
x = 34,442,618,326.78/212,785.16 - Step 6: Final answer
x = 161,865.70
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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.