Finding the Fourth Proportional to 318.62, 476.94 and 202.64
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Solution
The fourth proportional to 318.62, 476.94 and 202.64 is: 303.33
Step by Step Solution
- Step 1: Write the proportion equation
318.62 : 476.94 = 202.64 : x - Step 2: Convert to fraction form
318.62/476.94 = 202.64/x - Step 3: Cross multiply
318.62x = 476.94 × 202.64 - Step 4: Simplify right side
318.62x = 96,647.12 - Step 5: Solve for x
x = 96,647.12/318.62 - Step 6: Final answer
x = 303.33
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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.