Finding the Fourth Proportional to 128,235.14, 192,363.64 and 33,477.90
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Solution
The fourth proportional to 128,235.14, 192,363.64 and 33,477.90 is: 50,219.70
Step by Step Solution
- Step 1: Write the proportion equation
128,235.14 : 192,363.64 = 33,477.90 : x - Step 2: Convert to fraction form
128,235.14/192,363.64 = 33,477.90/x - Step 3: Cross multiply
128,235.14x = 192,363.64 × 33,477.90 - Step 4: Simplify right side
128,235.14x = 6,439,930,703.56 - Step 5: Solve for x
x = 6,439,930,703.56/128,235.14 - Step 6: Final answer
x = 50,219.70
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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.