Finding the Fourth Proportional to 278,380.26, 417,631.68 and 118,447.65
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Solution
The fourth proportional to 278,380.26, 417,631.68 and 118,447.65 is: 177,697.55
Step by Step Solution
- Step 1: Write the proportion equation
278,380.26 : 417,631.68 = 118,447.65 : x - Step 2: Convert to fraction form
278,380.26/417,631.68 = 118,447.65/x - Step 3: Cross multiply
278,380.26x = 417,631.68 × 118,447.65 - Step 4: Simplify right side
278,380.26x = 49,467,491,061.55 - Step 5: Solve for x
x = 49,467,491,061.55/278,380.26 - Step 6: Final answer
x = 177,697.55
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1.5x scale
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.