Finding the Fourth Proportional to 279,283.70, 418,597.50 and 129,206.97
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Solution
The fourth proportional to 279,283.70, 418,597.50 and 129,206.97 is: 193,658.69
Step by Step Solution
- Step 1: Write the proportion equation
279,283.70 : 418,597.50 = 129,206.97 : x - Step 2: Convert to fraction form
279,283.70/418,597.50 = 129,206.97/x - Step 3: Cross multiply
279,283.70x = 418,597.50 × 129,206.97 - Step 4: Simplify right side
279,283.70x = 54,085,715,196.22 - Step 5: Solve for x
x = 54,085,715,196.22/279,283.70 - Step 6: Final answer
x = 193,658.69
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1.5x scale
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.