Finding the Fourth Proportional to 339,771.76, 509,660.70 and 103,114.48
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Solution
The fourth proportional to 339,771.76, 509,660.70 and 103,114.48 is: 154,672.65
Step by Step Solution
- Step 1: Write the proportion equation
339,771.76 : 509,660.70 = 103,114.48 : x - Step 2: Convert to fraction form
339,771.76/509,660.70 = 103,114.48/x - Step 3: Cross multiply
339,771.76x = 509,660.70 × 103,114.48 - Step 4: Simplify right side
339,771.76x = 52,553,398,056.94 - Step 5: Solve for x
x = 52,553,398,056.94/339,771.76 - Step 6: Final answer
x = 154,672.65
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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.