Finding the Fourth Proportional to 243,129.42, 335,519.01 and 135,699.44
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Solution
The fourth proportional to 243,129.42, 335,519.01 and 135,699.44 is: 187,265.45
Step by Step Solution
- Step 1: Write the proportion equation
243,129.42 : 335,519.01 = 135,699.44 : x - Step 2: Convert to fraction form
243,129.42/335,519.01 = 135,699.44/x - Step 3: Cross multiply
243,129.42x = 335,519.01 × 135,699.44 - Step 4: Simplify right side
243,129.42x = 45,529,740,088.76 - Step 5: Solve for x
x = 45,529,740,088.76/243,129.42 - Step 6: Final answer
x = 187,265.45
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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.