Finding the Fourth Proportional to 143,933.55, 215,687.09 and 58,440.44
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Solution
The fourth proportional to 143,933.55, 215,687.09 and 58,440.44 is: 87,574.09
Step by Step Solution
- Step 1: Write the proportion equation
143,933.55 : 215,687.09 = 58,440.44 : x - Step 2: Convert to fraction form
143,933.55/215,687.09 = 58,440.44/x - Step 3: Cross multiply
143,933.55x = 215,687.09 × 58,440.44 - Step 4: Simplify right side
143,933.55x = 12,604,848,659.56 - Step 5: Solve for x
x = 12,604,848,659.56/143,933.55 - Step 6: Final answer
x = 87,574.09
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1.5x scale
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.