Finding the Fourth Proportional to 403.99, 605.94 and 130.01
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Solution
The fourth proportional to 403.99, 605.94 and 130.01 is: 194.99
Step by Step Solution
- Step 1: Write the proportion equation
403.99 : 605.94 = 130.01 : x - Step 2: Convert to fraction form
403.99/605.94 = 130.01/x - Step 3: Cross multiply
403.99x = 605.94 × 130.01 - Step 4: Simplify right side
403.99x = 78,775.23 - Step 5: Solve for x
x = 78,775.23/403.99 - Step 6: Final answer
x = 194.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.