Finding the Fourth Proportional to 312,738.99, 469,108.50 and 125,706.75
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Solution
The fourth proportional to 312,738.99, 469,108.50 and 125,706.75 is: 188,560.13
Step by Step Solution
- Step 1: Write the proportion equation
312,738.99 : 469,108.50 = 125,706.75 : x - Step 2: Convert to fraction form
312,738.99/469,108.50 = 125,706.75/x - Step 3: Cross multiply
312,738.99x = 469,108.50 × 125,706.75 - Step 4: Simplify right side
312,738.99x = 58,970,104,932.38 - Step 5: Solve for x
x = 58,970,104,932.38/312,738.99 - Step 6: Final answer
x = 188,560.13
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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.