Finding the Fourth Proportional to 338.08, 507.10 and 252.64
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Solution
The fourth proportional to 338.08, 507.10 and 252.64 is: 378.95
Step by Step Solution
- Step 1: Write the proportion equation
338.08 : 507.10 = 252.64 : x - Step 2: Convert to fraction form
338.08/507.10 = 252.64/x - Step 3: Cross multiply
338.08x = 507.10 × 252.64 - Step 4: Simplify right side
338.08x = 128,113.74 - Step 5: Solve for x
x = 128,113.74/338.08 - Step 6: Final answer
x = 378.95
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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.