Finding the Fourth Proportional to 354.18, 530.99 and 327.14
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Solution
The fourth proportional to 354.18, 530.99 and 327.14 is: 490.45
Step by Step Solution
- Step 1: Write the proportion equation
354.18 : 530.99 = 327.14 : x - Step 2: Convert to fraction form
354.18/530.99 = 327.14/x - Step 3: Cross multiply
354.18x = 530.99 × 327.14 - Step 4: Simplify right side
354.18x = 173,708.07 - Step 5: Solve for x
x = 173,708.07/354.18 - Step 6: Final answer
x = 490.45
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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.