Finding the Fourth Proportional to 252,396.95, 378,513.47 and 83,871.99
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Solution
The fourth proportional to 252,396.95, 378,513.47 and 83,871.99 is: 125,780.75
Step by Step Solution
- Step 1: Write the proportion equation
252,396.95 : 378,513.47 = 83,871.99 : x - Step 2: Convert to fraction form
252,396.95/378,513.47 = 83,871.99/x - Step 3: Cross multiply
252,396.95x = 378,513.47 × 83,871.99 - Step 4: Simplify right side
252,396.95x = 31,746,678,180.39 - Step 5: Solve for x
x = 31,746,678,180.39/252,396.95 - Step 6: Final answer
x = 125,780.75
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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.