Finding the Fourth Proportional to 336.30, 464.01 and 257.70
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Solution
The fourth proportional to 336.30, 464.01 and 257.70 is: 355.56
Step by Step Solution
- Step 1: Write the proportion equation
336.30 : 464.01 = 257.70 : x - Step 2: Convert to fraction form
336.30/464.01 = 257.70/x - Step 3: Cross multiply
336.30x = 464.01 × 257.70 - Step 4: Simplify right side
336.30x = 119,574.99 - Step 5: Solve for x
x = 119,574.99/336.30 - Step 6: Final answer
x = 355.56
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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.