Finding the Fourth Proportional to 189,963.36, 284,787.36 and 71,569.44
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Solution
The fourth proportional to 189,963.36, 284,787.36 and 71,569.44 is: 107,294.75
Step by Step Solution
- Step 1: Write the proportion equation
189,963.36 : 284,787.36 = 71,569.44 : x - Step 2: Convert to fraction form
189,963.36/284,787.36 = 71,569.44/x - Step 3: Cross multiply
189,963.36x = 284,787.36 × 71,569.44 - Step 4: Simplify right side
189,963.36x = 20,382,071,874.28 - Step 5: Solve for x
x = 20,382,071,874.28/189,963.36 - Step 6: Final answer
x = 107,294.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.