Finding the Fourth Proportional to 210,861.36, 316,415.88 and 77,751.99
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Solution
The fourth proportional to 210,861.36, 316,415.88 and 77,751.99 is: 116,673.65
Step by Step Solution
- Step 1: Write the proportion equation
210,861.36 : 316,415.88 = 77,751.99 : x - Step 2: Convert to fraction form
210,861.36/316,415.88 = 77,751.99/x - Step 3: Cross multiply
210,861.36x = 316,415.88 × 77,751.99 - Step 4: Simplify right side
210,861.36x = 24,601,964,337.60 - Step 5: Solve for x
x = 24,601,964,337.60/210,861.36 - Step 6: Final answer
x = 116,673.65
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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.