Finding the Fourth Proportional to 208,900.98, 313,350.93 and 75,780.99
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Solution
The fourth proportional to 208,900.98, 313,350.93 and 75,780.99 is: 113,671.29
Step by Step Solution
- Step 1: Write the proportion equation
208,900.98 : 313,350.93 = 75,780.99 : x - Step 2: Convert to fraction form
208,900.98/313,350.93 = 75,780.99/x - Step 3: Cross multiply
208,900.98x = 313,350.93 × 75,780.99 - Step 4: Simplify right side
208,900.98x = 23,746,043,692.82 - Step 5: Solve for x
x = 23,746,043,692.82/208,900.98 - Step 6: Final answer
x = 113,671.29
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1.5x scale
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.