Finding the Fourth Proportional to 309,890.10, 465,819.30 and 292,175.40
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Solution
The fourth proportional to 309,890.10, 465,819.30 and 292,175.40 is: 439,190.99
Step by Step Solution
- Step 1: Write the proportion equation
309,890.10 : 465,819.30 = 292,175.40 : x - Step 2: Convert to fraction form
309,890.10/465,819.30 = 292,175.40/x - Step 3: Cross multiply
309,890.10x = 465,819.30 × 292,175.40 - Step 4: Simplify right side
309,890.10x = 136,100,940,305.22 - Step 5: Solve for x
x = 136,100,940,305.22/309,890.10 - Step 6: Final answer
x = 439,190.99
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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.