Finding the Fourth Proportional to 391,357.69, 587,106.60 and 201,767.15
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Solution
The fourth proportional to 391,357.69, 587,106.60 and 201,767.15 is: 302,686.85
Step by Step Solution
- Step 1: Write the proportion equation
391,357.69 : 587,106.60 = 201,767.15 : x - Step 2: Convert to fraction form
391,357.69/587,106.60 = 201,767.15/x - Step 3: Cross multiply
391,357.69x = 587,106.60 × 201,767.15 - Step 4: Simplify right side
391,357.69x = 118,458,826,884.13 - Step 5: Solve for x
x = 118,458,826,884.13/391,357.69 - Step 6: Final answer
x = 302,686.85
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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.