Finding the Fourth Proportional to 411,358.64, 617,115.20 and 186,734.84
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Solution
The fourth proportional to 411,358.64, 617,115.20 and 186,734.84 is: 280,137.32
Step by Step Solution
- Step 1: Write the proportion equation
411,358.64 : 617,115.20 = 186,734.84 : x - Step 2: Convert to fraction form
411,358.64/617,115.20 = 186,734.84/x - Step 3: Cross multiply
411,358.64x = 617,115.20 × 186,734.84 - Step 4: Simplify right side
411,358.64x = 115,236,904,114.32 - Step 5: Solve for x
x = 115,236,904,114.32/411,358.64 - Step 6: Final answer
x = 280,137.32
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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.