Finding the Fourth Proportional to 309,657.06, 427,335.30 and 188,770.68
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Solution
The fourth proportional to 309,657.06, 427,335.30 and 188,770.68 is: 260,508.75
Step by Step Solution
- Step 1: Write the proportion equation
309,657.06 : 427,335.30 = 188,770.68 : x - Step 2: Convert to fraction form
309,657.06/427,335.30 = 188,770.68/x - Step 3: Cross multiply
309,657.06x = 427,335.30 × 188,770.68 - Step 4: Simplify right side
309,657.06x = 80,668,375,169.00 - Step 5: Solve for x
x = 80,668,375,169.00/309,657.06 - Step 6: Final answer
x = 260,508.75
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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.