Finding the Fourth Proportional to 299,318.20, 448,977.30 and 99,645.10
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Solution
The fourth proportional to 299,318.20, 448,977.30 and 99,645.10 is: 149,467.65
Step by Step Solution
- Step 1: Write the proportion equation
299,318.20 : 448,977.30 = 99,645.10 : x - Step 2: Convert to fraction form
299,318.20/448,977.30 = 99,645.10/x - Step 3: Cross multiply
299,318.20x = 448,977.30 × 99,645.10 - Step 4: Simplify right side
299,318.20x = 44,738,387,956.23 - Step 5: Solve for x
x = 44,738,387,956.23/299,318.20 - Step 6: Final answer
x = 149,467.65
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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.