Finding the Fourth Proportional to 311,892.77, 430,418.25 and 175,900.09
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Solution
The fourth proportional to 311,892.77, 430,418.25 and 175,900.09 is: 242,745.64
Step by Step Solution
- Step 1: Write the proportion equation
311,892.77 : 430,418.25 = 175,900.09 : x - Step 2: Convert to fraction form
311,892.77/430,418.25 = 175,900.09/x - Step 3: Cross multiply
311,892.77x = 430,418.25 × 175,900.09 - Step 4: Simplify right side
311,892.77x = 75,710,607,836.60 - Step 5: Solve for x
x = 75,710,607,836.60/311,892.77 - Step 6: Final answer
x = 242,745.64
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1.5x scale
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.