Finding the Fourth Proportional to 317.97, 476.73 and 283.77
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Solution
The fourth proportional to 317.97, 476.73 and 283.77 is: 425.45
Step by Step Solution
- Step 1: Write the proportion equation
317.97 : 476.73 = 283.77 : x - Step 2: Convert to fraction form
317.97/476.73 = 283.77/x - Step 3: Cross multiply
317.97x = 476.73 × 283.77 - Step 4: Simplify right side
317.97x = 135,281.67 - Step 5: Solve for x
x = 135,281.67/317.97 - Step 6: Final answer
x = 425.45
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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.