Finding the Fourth Proportional to 454.24, 626.70 and 279.55
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Solution
The fourth proportional to 454.24, 626.70 and 279.55 is: 385.69
Step by Step Solution
- Step 1: Write the proportion equation
454.24 : 626.70 = 279.55 : x - Step 2: Convert to fraction form
454.24/626.70 = 279.55/x - Step 3: Cross multiply
454.24x = 626.70 × 279.55 - Step 4: Simplify right side
454.24x = 175,193.99 - Step 5: Solve for x
x = 175,193.99/454.24 - Step 6: Final answer
x = 385.69
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.