Finding the Fourth Proportional to 308,091.96, 425,178.18 and 170,272.08
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Solution
The fourth proportional to 308,091.96, 425,178.18 and 170,272.08 is: 234,981.70
Step by Step Solution
- Step 1: Write the proportion equation
308,091.96 : 425,178.18 = 170,272.08 : x - Step 2: Convert to fraction form
308,091.96/425,178.18 = 170,272.08/x - Step 3: Cross multiply
308,091.96x = 425,178.18 × 170,272.08 - Step 4: Simplify right side
308,091.96x = 72,395,973,079.21 - Step 5: Solve for x
x = 72,395,973,079.21/308,091.96 - Step 6: Final answer
x = 234,981.70
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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.