Finding the Fourth Proportional to 454.59, 681.75 and 129.99
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Solution
The fourth proportional to 454.59, 681.75 and 129.99 is: 194.95
Step by Step Solution
- Step 1: Write the proportion equation
454.59 : 681.75 = 129.99 : x - Step 2: Convert to fraction form
454.59/681.75 = 129.99/x - Step 3: Cross multiply
454.59x = 681.75 × 129.99 - Step 4: Simplify right side
454.59x = 88,620.68 - Step 5: Solve for x
x = 88,620.68/454.59 - Step 6: Final answer
x = 194.95
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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.