Finding the Fourth Proportional to 311,700.18, 430,124.67 and 175,738.98
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Solution
The fourth proportional to 311,700.18, 430,124.67 and 175,738.98 is: 242,507.63
Step by Step Solution
- Step 1: Write the proportion equation
311,700.18 : 430,124.67 = 175,738.98 : x - Step 2: Convert to fraction form
311,700.18/430,124.67 = 175,738.98/x - Step 3: Cross multiply
311,700.18x = 430,124.67 × 175,738.98 - Step 4: Simplify right side
311,700.18x = 75,589,670,778.64 - Step 5: Solve for x
x = 75,589,670,778.64/311,700.18 - Step 6: Final answer
x = 242,507.63
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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.