Finding the Fourth Proportional to 289,354.86, 399,305.36 and 160,292.92
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Solution
The fourth proportional to 289,354.86, 399,305.36 and 160,292.92 is: 221,201.83
Step by Step Solution
- Step 1: Write the proportion equation
289,354.86 : 399,305.36 = 160,292.92 : x - Step 2: Convert to fraction form
289,354.86/399,305.36 = 160,292.92/x - Step 3: Cross multiply
289,354.86x = 399,305.36 × 160,292.92 - Step 4: Simplify right side
289,354.86x = 64,005,822,126.05 - Step 5: Solve for x
x = 64,005,822,126.05/289,354.86 - Step 6: Final answer
x = 221,201.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.