Finding the Fourth Proportional to 243,438.04, 335,932.50 and 135,986.68
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Solution
The fourth proportional to 243,438.04, 335,932.50 and 135,986.68 is: 187,654.92
Step by Step Solution
- Step 1: Write the proportion equation
243,438.04 : 335,932.50 = 135,986.68 : x - Step 2: Convert to fraction form
243,438.04/335,932.50 = 135,986.68/x - Step 3: Cross multiply
243,438.04x = 335,932.50 × 135,986.68 - Step 4: Simplify right side
243,438.04x = 45,682,345,379.10 - Step 5: Solve for x
x = 45,682,345,379.10/243,438.04 - Step 6: Final answer
x = 187,654.92
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1.5x scale
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.