Finding the Fourth Proportional to 260,752.80, 391,129.20 and 201,703.80
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Solution
The fourth proportional to 260,752.80, 391,129.20 and 201,703.80 is: 302,555.70
Step by Step Solution
- Step 1: Write the proportion equation
260,752.80 : 391,129.20 = 201,703.80 : x - Step 2: Convert to fraction form
260,752.80/391,129.20 = 201,703.80/x - Step 3: Cross multiply
260,752.80x = 391,129.20 × 201,703.80 - Step 4: Simplify right side
260,752.80x = 78,892,245,930.96 - Step 5: Solve for x
x = 78,892,245,930.96/260,752.80 - Step 6: Final answer
x = 302,555.70
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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.