Finding the Fourth Proportional to 385.91, 532.25 and 245.99
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Solution
The fourth proportional to 385.91, 532.25 and 245.99 is: 339.26
Step by Step Solution
- Step 1: Write the proportion equation
385.91 : 532.25 = 245.99 : x - Step 2: Convert to fraction form
385.91/532.25 = 245.99/x - Step 3: Cross multiply
385.91x = 532.25 × 245.99 - Step 4: Simplify right side
385.91x = 130,924.29 - Step 5: Solve for x
x = 130,924.29/385.91 - Step 6: Final answer
x = 339.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.