Finding the Fourth Proportional to 297.99, 446.70 and 135.63
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Solution
The fourth proportional to 297.99, 446.70 and 135.63 is: 203.32
Step by Step Solution
- Step 1: Write the proportion equation
297.99 : 446.70 = 135.63 : x - Step 2: Convert to fraction form
297.99/446.70 = 135.63/x - Step 3: Cross multiply
297.99x = 446.70 × 135.63 - Step 4: Simplify right side
297.99x = 60,585.92 - Step 5: Solve for x
x = 60,585.92/297.99 - Step 6: Final answer
x = 203.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.