Finding the Fourth Proportional to 338.60, 507.42 and 192.08
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Solution
The fourth proportional to 338.60, 507.42 and 192.08 is: 287.85
Step by Step Solution
- Step 1: Write the proportion equation
338.60 : 507.42 = 192.08 : x - Step 2: Convert to fraction form
338.60/507.42 = 192.08/x - Step 3: Cross multiply
338.60x = 507.42 × 192.08 - Step 4: Simplify right side
338.60x = 97,465.23 - Step 5: Solve for x
x = 97,465.23/338.60 - Step 6: Final answer
x = 287.85
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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.