Finding the Fourth Proportional to 344.15, 474.99 and 219.78
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Solution
The fourth proportional to 344.15, 474.99 and 219.78 is: 303.34
Step by Step Solution
- Step 1: Write the proportion equation
344.15 : 474.99 = 219.78 : x - Step 2: Convert to fraction form
344.15/474.99 = 219.78/x - Step 3: Cross multiply
344.15x = 474.99 × 219.78 - Step 4: Simplify right side
344.15x = 104,393.30 - Step 5: Solve for x
x = 104,393.30/344.15 - Step 6: Final answer
x = 303.34
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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.