Finding the Fourth Proportional to 409.70, 565.79 and 350.35
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Solution
The fourth proportional to 409.70, 565.79 and 350.35 is: 483.82
Step by Step Solution
- Step 1: Write the proportion equation
409.70 : 565.79 = 350.35 : x - Step 2: Convert to fraction form
409.70/565.79 = 350.35/x - Step 3: Cross multiply
409.70x = 565.79 × 350.35 - Step 4: Simplify right side
409.70x = 198,223.99 - Step 5: Solve for x
x = 198,223.99/409.70 - Step 6: Final answer
x = 483.82
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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.