Finding the Fourth Proportional to 128,228.40, 192,341.52 and 34,733.52
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Solution
The fourth proportional to 128,228.40, 192,341.52 and 34,733.52 is: 52,099.99
Step by Step Solution
- Step 1: Write the proportion equation
128,228.40 : 192,341.52 = 34,733.52 : x - Step 2: Convert to fraction form
128,228.40/192,341.52 = 34,733.52/x - Step 3: Cross multiply
128,228.40x = 192,341.52 × 34,733.52 - Step 4: Simplify right side
128,228.40x = 6,680,698,031.75 - Step 5: Solve for x
x = 6,680,698,031.75/128,228.40 - Step 6: Final answer
x = 52,099.99
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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.