Finding the Fourth Proportional to 349.58, 482.36 and 209.79
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Solution
The fourth proportional to 349.58, 482.36 and 209.79 is: 289.47
Step by Step Solution
- Step 1: Write the proportion equation
349.58 : 482.36 = 209.79 : x - Step 2: Convert to fraction form
349.58/482.36 = 209.79/x - Step 3: Cross multiply
349.58x = 482.36 × 209.79 - Step 4: Simplify right side
349.58x = 101,193.26 - Step 5: Solve for x
x = 101,193.26/349.58 - Step 6: Final answer
x = 289.47
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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.