Finding the Fourth Proportional to 212,893.38, 293,787.41 and 117,393.84
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Solution
The fourth proportional to 212,893.38, 293,787.41 and 117,393.84 is: 162,000.49
Step by Step Solution
- Step 1: Write the proportion equation
212,893.38 : 293,787.41 = 117,393.84 : x - Step 2: Convert to fraction form
212,893.38/293,787.41 = 117,393.84/x - Step 3: Cross multiply
212,893.38x = 293,787.41 × 117,393.84 - Step 4: Simplify right side
212,893.38x = 34,488,831,616.59 - Step 5: Solve for x
x = 34,488,831,616.59/212,893.38 - Step 6: Final answer
x = 162,000.49
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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.