Finding the Fourth Proportional to 311,642.92, 430,034.34 and 175,646.44
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Solution
The fourth proportional to 311,642.92, 430,034.34 and 175,646.44 is: 242,373.55
Step by Step Solution
- Step 1: Write the proportion equation
311,642.92 : 430,034.34 = 175,646.44 : x - Step 2: Convert to fraction form
311,642.92/430,034.34 = 175,646.44/x - Step 3: Cross multiply
311,642.92x = 430,034.34 × 175,646.44 - Step 4: Simplify right side
311,642.92x = 75,534,000,898.75 - Step 5: Solve for x
x = 75,534,000,898.75/311,642.92 - Step 6: Final answer
x = 242,373.55
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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.