Finding the Fourth Proportional to 613,298.67, 920,101.10 and 213,942.75
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Solution
The fourth proportional to 613,298.67, 920,101.10 and 213,942.75 is: 320,967.53
Step by Step Solution
- Step 1: Write the proportion equation
613,298.67 : 920,101.10 = 213,942.75 : x - Step 2: Convert to fraction form
613,298.67/920,101.10 = 213,942.75/x - Step 3: Cross multiply
613,298.67x = 920,101.10 × 213,942.75 - Step 4: Simplify right side
613,298.67x = 196,848,958,542.31 - Step 5: Solve for x
x = 196,848,958,542.31/613,298.67 - Step 6: Final answer
x = 320,967.53
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1.5x scale
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.