Finding the Fourth Proportional to 439.23, 658.70 and 207.99
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Solution
The fourth proportional to 439.23, 658.70 and 207.99 is: 311.91
Step by Step Solution
- Step 1: Write the proportion equation
439.23 : 658.70 = 207.99 : x - Step 2: Convert to fraction form
439.23/658.70 = 207.99/x - Step 3: Cross multiply
439.23x = 658.70 × 207.99 - Step 4: Simplify right side
439.23x = 137,001.97 - Step 5: Solve for x
x = 137,001.97/439.23 - Step 6: Final answer
x = 311.91
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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.