Finding the Fourth Proportional to 393.19, 589.70 and 173.88
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Solution
The fourth proportional to 393.19, 589.70 and 173.88 is: 260.79
Step by Step Solution
- Step 1: Write the proportion equation
393.19 : 589.70 = 173.88 : x - Step 2: Convert to fraction form
393.19/589.70 = 173.88/x - Step 3: Cross multiply
393.19x = 589.70 × 173.88 - Step 4: Simplify right side
393.19x = 102,537.47 - Step 5: Solve for x
x = 102,537.47/393.19 - Step 6: Final answer
x = 260.79
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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.