Finding the Fourth Proportional to 208,354.55, 287,528.99 and 112,861.62
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Solution
The fourth proportional to 208,354.55, 287,528.99 and 112,861.62 is: 155,748.88
Step by Step Solution
- Step 1: Write the proportion equation
208,354.55 : 287,528.99 = 112,861.62 : x - Step 2: Convert to fraction form
208,354.55/287,528.99 = 112,861.62/x - Step 3: Cross multiply
208,354.55x = 287,528.99 × 112,861.62 - Step 4: Simplify right side
208,354.55x = 32,450,987,044.06 - Step 5: Solve for x
x = 32,450,987,044.06/208,354.55 - Step 6: Final answer
x = 155,748.88
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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.