Finding the Fourth Proportional to 393.18, 589.37 and 132.95
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Solution
The fourth proportional to 393.18, 589.37 and 132.95 is: 199.28
Step by Step Solution
- Step 1: Write the proportion equation
393.18 : 589.37 = 132.95 : x - Step 2: Convert to fraction form
393.18/589.37 = 132.95/x - Step 3: Cross multiply
393.18x = 589.37 × 132.95 - Step 4: Simplify right side
393.18x = 78,353.13 - Step 5: Solve for x
x = 78,353.13/393.18 - Step 6: Final answer
x = 199.28
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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.