Finding the Fourth Proportional to 492,201.30, 738,647.55 and 211,919.70
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Solution
The fourth proportional to 492,201.30, 738,647.55 and 211,919.70 is: 318,028.35
Step by Step Solution
- Step 1: Write the proportion equation
492,201.30 : 738,647.55 = 211,919.70 : x - Step 2: Convert to fraction form
492,201.30/738,647.55 = 211,919.70/x - Step 3: Cross multiply
492,201.30x = 738,647.55 × 211,919.70 - Step 4: Simplify right side
492,201.30x = 156,533,967,201.74 - Step 5: Solve for x
x = 156,533,967,201.74/492,201.30 - Step 6: Final answer
x = 318,028.35
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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.