Finding the Fourth Proportional to 318,872.96, 440,028.06 and 198,011.65
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Solution
The fourth proportional to 318,872.96, 440,028.06 and 198,011.65 is: 273,245.75
Step by Step Solution
- Step 1: Write the proportion equation
318,872.96 : 440,028.06 = 198,011.65 : x - Step 2: Convert to fraction form
318,872.96/440,028.06 = 198,011.65/x - Step 3: Cross multiply
318,872.96x = 440,028.06 × 198,011.65 - Step 4: Simplify right side
318,872.96x = 87,130,682,206.90 - Step 5: Solve for x
x = 87,130,682,206.90/318,872.96 - Step 6: Final answer
x = 273,245.75
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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.