Finding the Fourth Proportional to 440.77, 660.99 and 209.26
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Solution
The fourth proportional to 440.77, 660.99 and 209.26 is: 313.81
Step by Step Solution
- Step 1: Write the proportion equation
440.77 : 660.99 = 209.26 : x - Step 2: Convert to fraction form
440.77/660.99 = 209.26/x - Step 3: Cross multiply
440.77x = 660.99 × 209.26 - Step 4: Simplify right side
440.77x = 138,316.75 - Step 5: Solve for x
x = 138,316.75/440.77 - Step 6: Final answer
x = 313.81
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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.