Finding the Fourth Proportional to 329.79, 493.98 and 207.99
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Solution
The fourth proportional to 329.79, 493.98 and 207.99 is: 311.54
Step by Step Solution
- Step 1: Write the proportion equation
329.79 : 493.98 = 207.99 : x - Step 2: Convert to fraction form
329.79/493.98 = 207.99/x - Step 3: Cross multiply
329.79x = 493.98 × 207.99 - Step 4: Simplify right side
329.79x = 102,742.90 - Step 5: Solve for x
x = 102,742.90/329.79 - Step 6: Final answer
x = 311.54
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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.