Finding the Fourth Proportional to 172,357.80, 258,536.70 and 154,861.80
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Solution
The fourth proportional to 172,357.80, 258,536.70 and 154,861.80 is: 232,292.70
Step by Step Solution
- Step 1: Write the proportion equation
172,357.80 : 258,536.70 = 154,861.80 : x - Step 2: Convert to fraction form
172,357.80/258,536.70 = 154,861.80/x - Step 3: Cross multiply
172,357.80x = 258,536.70 × 154,861.80 - Step 4: Simplify right side
172,357.80x = 40,037,458,728.06 - Step 5: Solve for x
x = 40,037,458,728.06/172,357.80 - Step 6: Final answer
x = 232,292.70
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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.