Finding the Fourth Proportional to 438.93, 605.93 and 328.77
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Solution
The fourth proportional to 438.93, 605.93 and 328.77 is: 453.85
Step by Step Solution
- Step 1: Write the proportion equation
438.93 : 605.93 = 328.77 : x - Step 2: Convert to fraction form
438.93/605.93 = 328.77/x - Step 3: Cross multiply
438.93x = 605.93 × 328.77 - Step 4: Simplify right side
438.93x = 199,209.96 - Step 5: Solve for x
x = 199,209.96/438.93 - Step 6: Final answer
x = 453.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.