Finding the Fourth Proportional to 312,420.70, 468,534.18 and 112,715.13
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Solution
The fourth proportional to 312,420.70, 468,534.18 and 112,715.13 is: 169,037.75
Step by Step Solution
- Step 1: Write the proportion equation
312,420.70 : 468,534.18 = 112,715.13 : x - Step 2: Convert to fraction form
312,420.70/468,534.18 = 112,715.13/x - Step 3: Cross multiply
312,420.70x = 468,534.18 × 112,715.13 - Step 4: Simplify right side
312,420.70x = 52,810,891,008.14 - Step 5: Solve for x
x = 52,810,891,008.14/312,420.70 - Step 6: Final answer
x = 169,037.75
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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.