Finding the Fourth Proportional to 385,184.92, 531,628.74 and 258,082.12
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Solution
The fourth proportional to 385,184.92, 531,628.74 and 258,082.12 is: 356,202.61
Step by Step Solution
- Step 1: Write the proportion equation
385,184.92 : 531,628.74 = 258,082.12 : x - Step 2: Convert to fraction form
385,184.92/531,628.74 = 258,082.12/x - Step 3: Cross multiply
385,184.92x = 531,628.74 × 258,082.12 - Step 4: Simplify right side
385,184.92x = 137,203,872,272.13 - Step 5: Solve for x
x = 137,203,872,272.13/385,184.92 - Step 6: Final answer
x = 356,202.61
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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.