Finding the Fourth Proportional to 311,757.99, 430,189.46 and 175,783.84
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Solution
The fourth proportional to 311,757.99, 430,189.46 and 175,783.84 is: 242,561.08
Step by Step Solution
- Step 1: Write the proportion equation
311,757.99 : 430,189.46 = 175,783.84 : x - Step 2: Convert to fraction form
311,757.99/430,189.46 = 175,783.84/x - Step 3: Cross multiply
311,757.99x = 430,189.46 × 175,783.84 - Step 4: Simplify right side
311,757.99x = 75,620,353,911.12 - Step 5: Solve for x
x = 75,620,353,911.12/311,757.99 - Step 6: Final answer
x = 242,561.08
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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.