Finding the Fourth Proportional to 359.88, 539.87 and 143.44
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Solution
The fourth proportional to 359.88, 539.87 and 143.44 is: 215.18
Step by Step Solution
- Step 1: Write the proportion equation
359.88 : 539.87 = 143.44 : x - Step 2: Convert to fraction form
359.88/539.87 = 143.44/x - Step 3: Cross multiply
359.88x = 539.87 × 143.44 - Step 4: Simplify right side
359.88x = 77,436.89 - Step 5: Solve for x
x = 77,436.89/359.88 - Step 6: Final answer
x = 215.18
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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.