Finding the Fourth Proportional to 311,713.41, 430,155.90 and 175,746.18
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Solution
The fourth proportional to 311,713.41, 430,155.90 and 175,746.18 is: 242,524.88
Step by Step Solution
- Step 1: Write the proportion equation
311,713.41 : 430,155.90 = 175,746.18 : x - Step 2: Convert to fraction form
311,713.41/430,155.90 = 175,746.18/x - Step 3: Cross multiply
311,713.41x = 430,155.90 × 175,746.18 - Step 4: Simplify right side
311,713.41x = 75,598,256,229.46 - Step 5: Solve for x
x = 75,598,256,229.46/311,713.41 - Step 6: Final answer
x = 242,524.88
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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.