Finding the Fourth Proportional to 278,909.26, 418,197.50 and 110,453.74
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Solution
The fourth proportional to 278,909.26, 418,197.50 and 110,453.74 is: 165,614.72
Step by Step Solution
- Step 1: Write the proportion equation
278,909.26 : 418,197.50 = 110,453.74 : x - Step 2: Convert to fraction form
278,909.26/418,197.50 = 110,453.74/x - Step 3: Cross multiply
278,909.26x = 418,197.50 × 110,453.74 - Step 4: Simplify right side
278,909.26x = 46,191,477,933.65 - Step 5: Solve for x
x = 46,191,477,933.65/278,909.26 - Step 6: Final answer
x = 165,614.72
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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.