Finding the Fourth Proportional to 212,787.76, 293,564.70 and 122,110.96
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Solution
The fourth proportional to 212,787.76, 293,564.70 and 122,110.96 is: 168,465.83
Step by Step Solution
- Step 1: Write the proportion equation
212,787.76 : 293,564.70 = 122,110.96 : x - Step 2: Convert to fraction form
212,787.76/293,564.70 = 122,110.96/x - Step 3: Cross multiply
212,787.76x = 293,564.70 × 122,110.96 - Step 4: Simplify right side
212,787.76x = 35,847,467,339.11 - Step 5: Solve for x
x = 35,847,467,339.11/212,787.76 - Step 6: Final answer
x = 168,465.83
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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.