Finding the Fourth Proportional to 212,739.45, 293,579.84 and 117,246.12
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Solution
The fourth proportional to 212,739.45, 293,579.84 and 117,246.12 is: 161,799.31
Step by Step Solution
- Step 1: Write the proportion equation
212,739.45 : 293,579.84 = 117,246.12 : x - Step 2: Convert to fraction form
212,739.45/293,579.84 = 117,246.12/x - Step 3: Cross multiply
212,739.45x = 293,579.84 × 117,246.12 - Step 4: Simplify right side
212,739.45x = 34,421,096,342.41 - Step 5: Solve for x
x = 34,421,096,342.41/212,739.45 - Step 6: Final answer
x = 161,799.31
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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.