Finding the Fourth Proportional to 303.84, 455.79 and 130.53
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Solution
The fourth proportional to 303.84, 455.79 and 130.53 is: 195.80
Step by Step Solution
- Step 1: Write the proportion equation
303.84 : 455.79 = 130.53 : x - Step 2: Convert to fraction form
303.84/455.79 = 130.53/x - Step 3: Cross multiply
303.84x = 455.79 × 130.53 - Step 4: Simplify right side
303.84x = 59,491.99 - Step 5: Solve for x
x = 59,491.99/303.84 - Step 6: Final answer
x = 195.80
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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.