Finding the Fourth Proportional to 168,622.06, 252,479.86 and 128,449.69
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Solution
The fourth proportional to 168,622.06, 252,479.86 and 128,449.69 is: 192,329.28
Step by Step Solution
- Step 1: Write the proportion equation
168,622.06 : 252,479.86 = 128,449.69 : x - Step 2: Convert to fraction form
168,622.06/252,479.86 = 128,449.69/x - Step 3: Cross multiply
168,622.06x = 252,479.86 × 128,449.69 - Step 4: Simplify right side
168,622.06x = 32,430,959,748.24 - Step 5: Solve for x
x = 32,430,959,748.24/168,622.06 - Step 6: Final answer
x = 192,329.28
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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.