Finding the Fourth Proportional to 146,279.18, 201,864.11 and 79,211.18
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Solution
The fourth proportional to 146,279.18, 201,864.11 and 79,211.18 is: 109,310.80
Step by Step Solution
- Step 1: Write the proportion equation
146,279.18 : 201,864.11 = 79,211.18 : x - Step 2: Convert to fraction form
146,279.18/201,864.11 = 79,211.18/x - Step 3: Cross multiply
146,279.18x = 201,864.11 × 79,211.18 - Step 4: Simplify right side
146,279.18x = 15,989,892,947.37 - Step 5: Solve for x
x = 15,989,892,947.37/146,279.18 - Step 6: Final answer
x = 109,310.80
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1.5x scale
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.