Finding the Fourth Proportional to 340.99, 470.49 and 209.97
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Solution
The fourth proportional to 340.99, 470.49 and 209.97 is: 289.71
Step by Step Solution
- Step 1: Write the proportion equation
340.99 : 470.49 = 209.97 : x - Step 2: Convert to fraction form
340.99/470.49 = 209.97/x - Step 3: Cross multiply
340.99x = 470.49 × 209.97 - Step 4: Simplify right side
340.99x = 98,789.18 - Step 5: Solve for x
x = 98,789.18/340.99 - Step 6: Final answer
x = 289.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.