Finding the Fourth Proportional to 320,717.12, 480,933.50 and 170,929.49
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Solution
The fourth proportional to 320,717.12, 480,933.50 and 170,929.49 is: 256,318.45
Step by Step Solution
- Step 1: Write the proportion equation
320,717.12 : 480,933.50 = 170,929.49 : x - Step 2: Convert to fraction form
320,717.12/480,933.50 = 170,929.49/x - Step 3: Cross multiply
320,717.12x = 480,933.50 × 170,929.49 - Step 4: Simplify right side
320,717.12x = 82,205,714,619.60 - Step 5: Solve for x
x = 82,205,714,619.60/320,717.12 - Step 6: Final answer
x = 256,318.45
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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.