Finding the Fourth Proportional to 311,899.68, 430,425.36 and 175,921.20
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Solution
The fourth proportional to 311,899.68, 430,425.36 and 175,921.20 is: 242,773.40
Step by Step Solution
- Step 1: Write the proportion equation
311,899.68 : 430,425.36 = 175,921.20 : x - Step 2: Convert to fraction form
311,899.68/430,425.36 = 175,921.20/x - Step 3: Cross multiply
311,899.68x = 430,425.36 × 175,921.20 - Step 4: Simplify right side
311,899.68x = 75,720,945,841.63 - Step 5: Solve for x
x = 75,720,945,841.63/311,899.68 - Step 6: Final answer
x = 242,773.40
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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.