Finding the Fourth Proportional to 209,160.28, 288,642.99 and 113,666.95
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Solution
The fourth proportional to 209,160.28, 288,642.99 and 113,666.95 is: 156,861.37
Step by Step Solution
- Step 1: Write the proportion equation
209,160.28 : 288,642.99 = 113,666.95 : x - Step 2: Convert to fraction form
209,160.28/288,642.99 = 113,666.95/x - Step 3: Cross multiply
209,160.28x = 288,642.99 × 113,666.95 - Step 4: Simplify right side
209,160.28x = 32,809,168,312.18 - Step 5: Solve for x
x = 32,809,168,312.18/209,160.28 - Step 6: Final answer
x = 156,861.37
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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.