Finding the Fourth Proportional to 339,305.22, 509,074.20 and 212,792.67
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Solution
The fourth proportional to 339,305.22, 509,074.20 and 212,792.67 is: 319,261.99
Step by Step Solution
- Step 1: Write the proportion equation
339,305.22 : 509,074.20 = 212,792.67 : x - Step 2: Convert to fraction form
339,305.22/509,074.20 = 212,792.67/x - Step 3: Cross multiply
339,305.22x = 509,074.20 × 212,792.67 - Step 4: Simplify right side
339,305.22x = 108,327,258,246.11 - Step 5: Solve for x
x = 108,327,258,246.11/339,305.22 - Step 6: Final answer
x = 319,261.99
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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.