Finding the Fourth Proportional to 128,349.16, 192,509.01 and 33,588.49
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Solution
The fourth proportional to 128,349.16, 192,509.01 and 33,588.49 is: 50,378.88
Step by Step Solution
- Step 1: Write the proportion equation
128,349.16 : 192,509.01 = 33,588.49 : x - Step 2: Convert to fraction form
128,349.16/192,509.01 = 33,588.49/x - Step 3: Cross multiply
128,349.16x = 192,509.01 × 33,588.49 - Step 4: Simplify right side
128,349.16x = 6,466,086,957.29 - Step 5: Solve for x
x = 6,466,086,957.29/128,349.16 - Step 6: Final answer
x = 50,378.88
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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.