Finding the Fourth Proportional to 217,623.73, 300,350.07 and 122,135.68
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Solution
The fourth proportional to 217,623.73, 300,350.07 and 122,135.68 is: 168,563.69
Step by Step Solution
- Step 1: Write the proportion equation
217,623.73 : 300,350.07 = 122,135.68 : x - Step 2: Convert to fraction form
217,623.73/300,350.07 = 122,135.68/x - Step 3: Cross multiply
217,623.73x = 300,350.07 × 122,135.68 - Step 4: Simplify right side
217,623.73x = 36,683,460,037.50 - Step 5: Solve for x
x = 36,683,460,037.50/217,623.73 - Step 6: Final answer
x = 168,563.69
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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.