Finding the Fourth Proportional to 414.02, 620.99 and 140.08
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Solution
The fourth proportional to 414.02, 620.99 and 140.08 is: 210.11
Step by Step Solution
- Step 1: Write the proportion equation
414.02 : 620.99 = 140.08 : x - Step 2: Convert to fraction form
414.02/620.99 = 140.08/x - Step 3: Cross multiply
414.02x = 620.99 × 140.08 - Step 4: Simplify right side
414.02x = 86,988.11 - Step 5: Solve for x
x = 86,988.11/414.02 - Step 6: Final answer
x = 210.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.