Finding the Fourth Proportional to 317.93, 476.97 and 135.23
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Solution
The fourth proportional to 317.93, 476.97 and 135.23 is: 202.87
Step by Step Solution
- Step 1: Write the proportion equation
317.93 : 476.97 = 135.23 : x - Step 2: Convert to fraction form
317.93/476.97 = 135.23/x - Step 3: Cross multiply
317.93x = 476.97 × 135.23 - Step 4: Simplify right side
317.93x = 64,498.27 - Step 5: Solve for x
x = 64,498.27/317.93 - Step 6: Final answer
x = 202.87
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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.