Finding the Fourth Proportional to 391,790.94, 587,907.84 and 167,130.15
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Solution
The fourth proportional to 391,790.94, 587,907.84 and 167,130.15 is: 250,789.68
Step by Step Solution
- Step 1: Write the proportion equation
391,790.94 : 587,907.84 = 167,130.15 : x - Step 2: Convert to fraction form
391,790.94/587,907.84 = 167,130.15/x - Step 3: Cross multiply
391,790.94x = 587,907.84 × 167,130.15 - Step 4: Simplify right side
391,790.94x = 98,257,125,485.38 - Step 5: Solve for x
x = 98,257,125,485.38/391,790.94 - Step 6: Final answer
x = 250,789.68
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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.