Finding the Fourth Proportional to 339,968.70, 509,261.85 and 173,850.30
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Solution
The fourth proportional to 339,968.70, 509,261.85 and 173,850.30 is: 260,421.99
Step by Step Solution
- Step 1: Write the proportion equation
339,968.70 : 509,261.85 = 173,850.30 : x - Step 2: Convert to fraction form
339,968.70/509,261.85 = 173,850.30/x - Step 3: Cross multiply
339,968.70x = 509,261.85 × 173,850.30 - Step 4: Simplify right side
339,968.70x = 88,535,325,401.06 - Step 5: Solve for x
x = 88,535,325,401.06/339,968.70 - Step 6: Final answer
x = 260,421.99
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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.