Finding the Fourth Proportional to 649.20, 973.82 and 283.99
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Solution
The fourth proportional to 649.20, 973.82 and 283.99 is: 425.99
Step by Step Solution
- Step 1: Write the proportion equation
649.20 : 973.82 = 283.99 : x - Step 2: Convert to fraction form
649.20/973.82 = 283.99/x - Step 3: Cross multiply
649.20x = 973.82 × 283.99 - Step 4: Simplify right side
649.20x = 276,555.14 - Step 5: Solve for x
x = 276,555.14/649.20 - Step 6: Final answer
x = 425.99
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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.