Finding the Fourth Proportional to 386,816.24, 580,226.92 and 106,363.12
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Solution
The fourth proportional to 386,816.24, 580,226.92 and 106,363.12 is: 159,545.38
Step by Step Solution
- Step 1: Write the proportion equation
386,816.24 : 580,226.92 = 106,363.12 : x - Step 2: Convert to fraction form
386,816.24/580,226.92 = 106,363.12/x - Step 3: Cross multiply
386,816.24x = 580,226.92 × 106,363.12 - Step 4: Simplify right side
386,816.24x = 61,714,745,519.19 - Step 5: Solve for x
x = 61,714,745,519.19/386,816.24 - Step 6: Final answer
x = 159,545.38
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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.