Finding the Fourth Proportional to 145,208.70, 217,840.68 and 50,435.28
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Solution
The fourth proportional to 145,208.70, 217,840.68 and 50,435.28 is: 75,662.52
Step by Step Solution
- Step 1: Write the proportion equation
145,208.70 : 217,840.68 = 50,435.28 : x - Step 2: Convert to fraction form
145,208.70/217,840.68 = 50,435.28/x - Step 3: Cross multiply
145,208.70x = 217,840.68 × 50,435.28 - Step 4: Simplify right side
145,208.70x = 10,986,855,691.19 - Step 5: Solve for x
x = 10,986,855,691.19/145,208.70 - Step 6: Final answer
x = 75,662.52
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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.