Finding the Fourth Proportional to 309,711.76, 464,775.12 and 132,260.32
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Solution
The fourth proportional to 309,711.76, 464,775.12 and 132,260.32 is: 198,479.08
Step by Step Solution
- Step 1: Write the proportion equation
309,711.76 : 464,775.12 = 132,260.32 : x - Step 2: Convert to fraction form
309,711.76/464,775.12 = 132,260.32/x - Step 3: Cross multiply
309,711.76x = 464,775.12 × 132,260.32 - Step 4: Simplify right side
309,711.76x = 61,471,306,099.24 - Step 5: Solve for x
x = 61,471,306,099.24/309,711.76 - Step 6: Final answer
x = 198,479.08
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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.