Finding the Fourth Proportional to 454.38, 626.99 and 257.93
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Solution
The fourth proportional to 454.38, 626.99 and 257.93 is: 355.90
Step by Step Solution
- Step 1: Write the proportion equation
454.38 : 626.99 = 257.93 : x - Step 2: Convert to fraction form
454.38/626.99 = 257.93/x - Step 3: Cross multiply
454.38x = 626.99 × 257.93 - Step 4: Simplify right side
454.38x = 161,715.11 - Step 5: Solve for x
x = 161,715.11/454.38 - Step 6: Final answer
x = 355.90
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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.