Finding the Fourth Proportional to 415,420.67, 623,236.05 and 115,901.12
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Solution
The fourth proportional to 415,420.67, 623,236.05 and 115,901.12 is: 173,880.98
Step by Step Solution
- Step 1: Write the proportion equation
415,420.67 : 623,236.05 = 115,901.12 : x - Step 2: Convert to fraction form
415,420.67/623,236.05 = 115,901.12/x - Step 3: Cross multiply
415,420.67x = 623,236.05 × 115,901.12 - Step 4: Simplify right side
415,420.67x = 72,233,753,103.20 - Step 5: Solve for x
x = 72,233,753,103.20/415,420.67 - Step 6: Final answer
x = 173,880.98
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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.