Finding the Fourth Proportional to 311,972.27, 467,970.14 and 87,326.94
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Solution
The fourth proportional to 311,972.27, 467,970.14 and 87,326.94 is: 130,993.69
Step by Step Solution
- Step 1: Write the proportion equation
311,972.27 : 467,970.14 = 87,326.94 : x - Step 2: Convert to fraction form
311,972.27/467,970.14 = 87,326.94/x - Step 3: Cross multiply
311,972.27x = 467,970.14 × 87,326.94 - Step 4: Simplify right side
311,972.27x = 40,866,399,900.94 - Step 5: Solve for x
x = 40,866,399,900.94/311,972.27 - Step 6: Final answer
x = 130,993.69
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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.