Finding the Fourth Proportional to 201,511.66, 278,086.08 and 110,865.70
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Solution
The fourth proportional to 201,511.66, 278,086.08 and 110,865.70 is: 152,994.66
Step by Step Solution
- Step 1: Write the proportion equation
201,511.66 : 278,086.08 = 110,865.70 : x - Step 2: Convert to fraction form
201,511.66/278,086.08 = 110,865.70/x - Step 3: Cross multiply
201,511.66x = 278,086.08 × 110,865.70 - Step 4: Simplify right side
201,511.66x = 30,830,207,919.46 - Step 5: Solve for x
x = 30,830,207,919.46/201,511.66 - Step 6: Final answer
x = 152,994.66
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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.