Finding the Fourth Proportional to 454.35, 626.99 and 306.75
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Solution
The fourth proportional to 454.35, 626.99 and 306.75 is: 423.30
Step by Step Solution
- Step 1: Write the proportion equation
454.35 : 626.99 = 306.75 : x - Step 2: Convert to fraction form
454.35/626.99 = 306.75/x - Step 3: Cross multiply
454.35x = 626.99 × 306.75 - Step 4: Simplify right side
454.35x = 192,327.65 - Step 5: Solve for x
x = 192,327.65/454.35 - Step 6: Final answer
x = 423.30
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.