Finding the Fourth Proportional to 311,700.68, 430,125.36 and 175,739.48
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Solution
The fourth proportional to 311,700.68, 430,125.36 and 175,739.48 is: 242,508.32
Step by Step Solution
- Step 1: Write the proportion equation
311,700.68 : 430,125.36 = 175,739.48 : x - Step 2: Convert to fraction form
311,700.68/430,125.36 = 175,739.48/x - Step 3: Cross multiply
311,700.68x = 430,125.36 × 175,739.48 - Step 4: Simplify right side
311,700.68x = 75,590,007,101.21 - Step 5: Solve for x
x = 75,590,007,101.21/311,700.68 - Step 6: Final answer
x = 242,508.32
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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.