Finding the Fourth Proportional to 243,203.23, 335,611.51 and 135,777.79
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Solution
The fourth proportional to 243,203.23, 335,611.51 and 135,777.79 is: 187,368.35
Step by Step Solution
- Step 1: Write the proportion equation
243,203.23 : 335,611.51 = 135,777.79 : x - Step 2: Convert to fraction form
243,203.23/335,611.51 = 135,777.79/x - Step 3: Cross multiply
243,203.23x = 335,611.51 × 135,777.79 - Step 4: Simplify right side
243,203.23x = 45,568,589,126.36 - Step 5: Solve for x
x = 45,568,589,126.36/243,203.23 - Step 6: Final answer
x = 187,368.35
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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.