Finding the Fourth Proportional to 260.01, 390.21 and 199.26
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Solution
The fourth proportional to 260.01, 390.21 and 199.26 is: 299.04
Step by Step Solution
- Step 1: Write the proportion equation
260.01 : 390.21 = 199.26 : x - Step 2: Convert to fraction form
260.01/390.21 = 199.26/x - Step 3: Cross multiply
260.01x = 390.21 × 199.26 - Step 4: Simplify right side
260.01x = 77,753.24 - Step 5: Solve for x
x = 77,753.24/260.01 - Step 6: Final answer
x = 299.04
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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.