Finding the Fourth Proportional to 454.68, 681.84 and 316.08
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Solution
The fourth proportional to 454.68, 681.84 and 316.08 is: 473.99
Step by Step Solution
- Step 1: Write the proportion equation
454.68 : 681.84 = 316.08 : x - Step 2: Convert to fraction form
454.68/681.84 = 316.08/x - Step 3: Cross multiply
454.68x = 681.84 × 316.08 - Step 4: Simplify right side
454.68x = 215,515.99 - Step 5: Solve for x
x = 215,515.99/454.68 - Step 6: Final answer
x = 473.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.