Finding the Fourth Proportional to 292,912.14, 439,364.12 and 115,420.69
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Solution
The fourth proportional to 292,912.14, 439,364.12 and 115,420.69 is: 173,129.42
Step by Step Solution
- Step 1: Write the proportion equation
292,912.14 : 439,364.12 = 115,420.69 : x - Step 2: Convert to fraction form
292,912.14/439,364.12 = 115,420.69/x - Step 3: Cross multiply
292,912.14x = 439,364.12 × 115,420.69 - Step 4: Simplify right side
292,912.14x = 50,711,709,863.74 - Step 5: Solve for x
x = 50,711,709,863.74/292,912.14 - Step 6: Final answer
x = 173,129.42
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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.