Finding the Fourth Proportional to 247,943.70, 371,915.55 and 79,463.70
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Solution
The fourth proportional to 247,943.70, 371,915.55 and 79,463.70 is: 119,195.55
Step by Step Solution
- Step 1: Write the proportion equation
247,943.70 : 371,915.55 = 79,463.70 : x - Step 2: Convert to fraction form
247,943.70/371,915.55 = 79,463.70/x - Step 3: Cross multiply
247,943.70x = 371,915.55 × 79,463.70 - Step 4: Simplify right side
247,943.70x = 29,553,785,690.54 - Step 5: Solve for x
x = 29,553,785,690.54/247,943.70 - Step 6: Final answer
x = 119,195.55
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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.