Finding the Fourth Proportional to 400.96, 601.50 and 140.99
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Solution
The fourth proportional to 400.96, 601.50 and 140.99 is: 211.51
Step by Step Solution
- Step 1: Write the proportion equation
400.96 : 601.50 = 140.99 : x - Step 2: Convert to fraction form
400.96/601.50 = 140.99/x - Step 3: Cross multiply
400.96x = 601.50 × 140.99 - Step 4: Simplify right side
400.96x = 84,805.13 - Step 5: Solve for x
x = 84,805.13/400.96 - Step 6: Final answer
x = 211.51
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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.