Finding the Fourth Proportional to 454.49, 626.99 and 307.18
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Solution
The fourth proportional to 454.49, 626.99 and 307.18 is: 423.76
Step by Step Solution
- Step 1: Write the proportion equation
454.49 : 626.99 = 307.18 : x - Step 2: Convert to fraction form
454.49/626.99 = 307.18/x - Step 3: Cross multiply
454.49x = 626.99 × 307.18 - Step 4: Simplify right side
454.49x = 192,595.68 - Step 5: Solve for x
x = 192,595.68/454.49 - Step 6: Final answer
x = 423.76
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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.