Finding the Fourth Proportional to 301.99, 452.99 and 139.69
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Solution
The fourth proportional to 301.99, 452.99 and 139.69 is: 209.54
Step by Step Solution
- Step 1: Write the proportion equation
301.99 : 452.99 = 139.69 : x - Step 2: Convert to fraction form
301.99/452.99 = 139.69/x - Step 3: Cross multiply
301.99x = 452.99 × 139.69 - Step 4: Simplify right side
301.99x = 63,278.17 - Step 5: Solve for x
x = 63,278.17/301.99 - Step 6: Final answer
x = 209.54
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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.