Finding the Fourth Proportional to 210,674.60, 315,235.36 and 126,485.92
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Solution
The fourth proportional to 210,674.60, 315,235.36 and 126,485.92 is: 189,262.66
Step by Step Solution
- Step 1: Write the proportion equation
210,674.60 : 315,235.36 = 126,485.92 : x - Step 2: Convert to fraction form
210,674.60/315,235.36 = 126,485.92/x - Step 3: Cross multiply
210,674.60x = 315,235.36 × 126,485.92 - Step 4: Simplify right side
210,674.60x = 39,872,834,526.13 - Step 5: Solve for x
x = 39,872,834,526.13/210,674.60 - Step 6: Final answer
x = 189,262.66
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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.