Finding the Fourth Proportional to 311,864.42, 430,370.81 and 175,899.49
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Solution
The fourth proportional to 311,864.42, 430,370.81 and 175,899.49 is: 242,740.12
Step by Step Solution
- Step 1: Write the proportion equation
311,864.42 : 430,370.81 = 175,899.49 : x - Step 2: Convert to fraction form
311,864.42/430,370.81 = 175,899.49/x - Step 3: Cross multiply
311,864.42x = 430,370.81 × 175,899.49 - Step 4: Simplify right side
311,864.42x = 75,702,005,989.89 - Step 5: Solve for x
x = 75,702,005,989.89/311,864.42 - Step 6: Final answer
x = 242,740.12
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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.