Finding the Fourth Proportional to 128,278.24, 192,420.24 and 44,037.76
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Solution
The fourth proportional to 128,278.24, 192,420.24 and 44,037.76 is: 66,057.63
Step by Step Solution
- Step 1: Write the proportion equation
128,278.24 : 192,420.24 = 44,037.76 : x - Step 2: Convert to fraction form
128,278.24/192,420.24 = 44,037.76/x - Step 3: Cross multiply
128,278.24x = 192,420.24 × 44,037.76 - Step 4: Simplify right side
128,278.24x = 8,473,756,348.26 - Step 5: Solve for x
x = 8,473,756,348.26/128,278.24 - Step 6: Final answer
x = 66,057.63
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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.