Finding the Fourth Proportional to 381,465.92, 572,302.08 and 115,235.12
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Solution
The fourth proportional to 381,465.92, 572,302.08 and 115,235.12 is: 172,883.86
Step by Step Solution
- Step 1: Write the proportion equation
381,465.92 : 572,302.08 = 115,235.12 : x - Step 2: Convert to fraction form
381,465.92/572,302.08 = 115,235.12/x - Step 3: Cross multiply
381,465.92x = 572,302.08 × 115,235.12 - Step 4: Simplify right side
381,465.92x = 65,949,298,865.05 - Step 5: Solve for x
x = 65,949,298,865.05/381,465.92 - Step 6: Final answer
x = 172,883.86
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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.