Finding the Fourth Proportional to 299,163.92, 448,742.41 and 85,937.05
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Solution
The fourth proportional to 299,163.92, 448,742.41 and 85,937.05 is: 128,904.59
Step by Step Solution
- Step 1: Write the proportion equation
299,163.92 : 448,742.41 = 85,937.05 : x - Step 2: Convert to fraction form
299,163.92/448,742.41 = 85,937.05/x - Step 3: Cross multiply
299,163.92x = 448,742.41 × 85,937.05 - Step 4: Simplify right side
299,163.92x = 38,563,601,265.26 - Step 5: Solve for x
x = 38,563,601,265.26/299,163.92 - Step 6: Final answer
x = 128,904.59
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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.