Finding the Fourth Proportional to 208,889.19, 288,265.50 and 113,393.97
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Solution
The fourth proportional to 208,889.19, 288,265.50 and 113,393.97 is: 156,482.82
Step by Step Solution
- Step 1: Write the proportion equation
208,889.19 : 288,265.50 = 113,393.97 : x - Step 2: Convert to fraction form
208,889.19/288,265.50 = 113,393.97/x - Step 3: Cross multiply
208,889.19x = 288,265.50 × 113,393.97 - Step 4: Simplify right side
208,889.19x = 32,687,569,459.04 - Step 5: Solve for x
x = 32,687,569,459.04/208,889.19 - Step 6: Final answer
x = 156,482.82
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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.