Finding the Fourth Proportional to 299,977.60, 449,901.60 and 131,497.60
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Solution
The fourth proportional to 299,977.60, 449,901.60 and 131,497.60 is: 197,217.99
Step by Step Solution
- Step 1: Write the proportion equation
299,977.60 : 449,901.60 = 131,497.60 : x - Step 2: Convert to fraction form
299,977.60/449,901.60 = 131,497.60/x - Step 3: Cross multiply
299,977.60x = 449,901.60 × 131,497.60 - Step 4: Simplify right side
299,977.60x = 59,160,980,636.16 - Step 5: Solve for x
x = 59,160,980,636.16/299,977.60 - Step 6: Final answer
x = 197,217.99
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1.5x scale
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.