Finding the Fourth Proportional to 309,650.19, 464,475.99 and 85,013.70
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Solution
The fourth proportional to 309,650.19, 464,475.99 and 85,013.70 is: 127,520.74
Step by Step Solution
- Step 1: Write the proportion equation
309,650.19 : 464,475.99 = 85,013.70 : x - Step 2: Convert to fraction form
309,650.19/464,475.99 = 85,013.70/x - Step 3: Cross multiply
309,650.19x = 464,475.99 × 85,013.70 - Step 4: Simplify right side
309,650.19x = 39,486,822,471.06 - Step 5: Solve for x
x = 39,486,822,471.06/309,650.19 - Step 6: Final answer
x = 127,520.74
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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.