Finding the Fourth Proportional to 290,617.50, 401,216.58 and 188,734.08
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Solution
The fourth proportional to 290,617.50, 401,216.58 and 188,734.08 is: 260,559.82
Step by Step Solution
- Step 1: Write the proportion equation
290,617.50 : 401,216.58 = 188,734.08 : x - Step 2: Convert to fraction form
290,617.50/401,216.58 = 188,734.08/x - Step 3: Cross multiply
290,617.50x = 401,216.58 × 188,734.08 - Step 4: Simplify right side
290,617.50x = 75,723,242,107.05 - Step 5: Solve for x
x = 75,723,242,107.05/290,617.50 - Step 6: Final answer
x = 260,559.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.