Finding the Fourth Proportional to 318,780.56, 439,917.18 and 175,540.26
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Solution
The fourth proportional to 318,780.56, 439,917.18 and 175,540.26 is: 242,245.56
Step by Step Solution
- Step 1: Write the proportion equation
318,780.56 : 439,917.18 = 175,540.26 : x - Step 2: Convert to fraction form
318,780.56/439,917.18 = 175,540.26/x - Step 3: Cross multiply
318,780.56x = 439,917.18 × 175,540.26 - Step 4: Simplify right side
318,780.56x = 77,223,177,147.08 - Step 5: Solve for x
x = 77,223,177,147.08/318,780.56 - Step 6: Final answer
x = 242,245.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.