Finding the Fourth Proportional to 338.66, 507.99 and 95.19
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Solution
The fourth proportional to 338.66, 507.99 and 95.19 is: 142.78
Step by Step Solution
- Step 1: Write the proportion equation
338.66 : 507.99 = 95.19 : x - Step 2: Convert to fraction form
338.66/507.99 = 95.19/x - Step 3: Cross multiply
338.66x = 507.99 × 95.19 - Step 4: Simplify right side
338.66x = 48,352.55 - Step 5: Solve for x
x = 48,352.55/338.66 - Step 6: Final answer
x = 142.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.