Finding the Fourth Proportional to 338.53, 507.40 and 132.99
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Solution
The fourth proportional to 338.53, 507.40 and 132.99 is: 199.33
Step by Step Solution
- Step 1: Write the proportion equation
338.53 : 507.40 = 132.99 : x - Step 2: Convert to fraction form
338.53/507.40 = 132.99/x - Step 3: Cross multiply
338.53x = 507.40 × 132.99 - Step 4: Simplify right side
338.53x = 67,479.13 - Step 5: Solve for x
x = 67,479.13/338.53 - Step 6: Final answer
x = 199.33
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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.