Finding the Fourth Proportional to 726.99, 1,090.49 and 206.99
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Solution
The fourth proportional to 726.99, 1,090.49 and 206.99 is: 310.49
Step by Step Solution
- Step 1: Write the proportion equation
726.99 : 1,090.49 = 206.99 : x - Step 2: Convert to fraction form
726.99/1,090.49 = 206.99/x - Step 3: Cross multiply
726.99x = 1,090.49 × 206.99 - Step 4: Simplify right side
726.99x = 225,720.53 - Step 5: Solve for x
x = 225,720.53/726.99 - Step 6: Final answer
x = 310.49
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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.