Finding the Fourth Proportional to 393.21, 589.77 and 104.67
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Solution
The fourth proportional to 393.21, 589.77 and 104.67 is: 156.99
Step by Step Solution
- Step 1: Write the proportion equation
393.21 : 589.77 = 104.67 : x - Step 2: Convert to fraction form
393.21/589.77 = 104.67/x - Step 3: Cross multiply
393.21x = 589.77 × 104.67 - Step 4: Simplify right side
393.21x = 61,731.23 - Step 5: Solve for x
x = 61,731.23/393.21 - Step 6: Final answer
x = 156.99
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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.