Finding the Fourth Proportional to 718.94, 1,078.58 and 231.95
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Solution
The fourth proportional to 718.94, 1,078.58 and 231.95 is: 347.98
Step by Step Solution
- Step 1: Write the proportion equation
718.94 : 1,078.58 = 231.95 : x - Step 2: Convert to fraction form
718.94/1,078.58 = 231.95/x - Step 3: Cross multiply
718.94x = 1,078.58 × 231.95 - Step 4: Simplify right side
718.94x = 250,179.91 - Step 5: Solve for x
x = 250,179.91/718.94 - Step 6: Final answer
x = 347.98
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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.