Finding the Fourth Proportional to 212,371.70, 293,078.83 and 115,576.44
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Solution
The fourth proportional to 212,371.70, 293,078.83 and 115,576.44 is: 159,498.70
Step by Step Solution
- Step 1: Write the proportion equation
212,371.70 : 293,078.83 = 115,576.44 : x - Step 2: Convert to fraction form
212,371.70/293,078.83 = 115,576.44/x - Step 3: Cross multiply
212,371.70x = 293,078.83 × 115,576.44 - Step 4: Simplify right side
212,371.70x = 33,873,009,437.40 - Step 5: Solve for x
x = 33,873,009,437.40/212,371.70 - Step 6: Final answer
x = 159,498.70
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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.