Finding the Fourth Proportional to 491.74, 737.50 and 144.99
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Solution
The fourth proportional to 491.74, 737.50 and 144.99 is: 217.45
Step by Step Solution
- Step 1: Write the proportion equation
491.74 : 737.50 = 144.99 : x - Step 2: Convert to fraction form
491.74/737.50 = 144.99/x - Step 3: Cross multiply
491.74x = 737.50 × 144.99 - Step 4: Simplify right side
491.74x = 106,930.13 - Step 5: Solve for x
x = 106,930.13/491.74 - Step 6: Final answer
x = 217.45
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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.