Finding the Fourth Proportional to 207,037.38, 285,721.73 and 116,421.87
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Solution
The fourth proportional to 207,037.38, 285,721.73 and 116,421.87 is: 160,667.88
Step by Step Solution
- Step 1: Write the proportion equation
207,037.38 : 285,721.73 = 116,421.87 : x - Step 2: Convert to fraction form
207,037.38/285,721.73 = 116,421.87/x - Step 3: Cross multiply
207,037.38x = 285,721.73 × 116,421.87 - Step 4: Simplify right side
207,037.38x = 33,264,257,524.13 - Step 5: Solve for x
x = 33,264,257,524.13/207,037.38 - Step 6: Final answer
x = 160,667.88
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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.