Finding the Fourth Proportional to 344.91, 517.28 and 207.91
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Solution
The fourth proportional to 344.91, 517.28 and 207.91 is: 311.81
Step by Step Solution
- Step 1: Write the proportion equation
344.91 : 517.28 = 207.91 : x - Step 2: Convert to fraction form
344.91/517.28 = 207.91/x - Step 3: Cross multiply
344.91x = 517.28 × 207.91 - Step 4: Simplify right side
344.91x = 107,545.10 - Step 5: Solve for x
x = 107,545.10/344.91 - Step 6: Final answer
x = 311.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.