Finding the Fourth Proportional to 312,378.10, 468,457.80 and 162,568.60
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Solution
The fourth proportional to 312,378.10, 468,457.80 and 162,568.60 is: 243,795.99
Step by Step Solution
- Step 1: Write the proportion equation
312,378.10 : 468,457.80 = 162,568.60 : x - Step 2: Convert to fraction form
312,378.10/468,457.80 = 162,568.60/x - Step 3: Cross multiply
312,378.10x = 468,457.80 × 162,568.60 - Step 4: Simplify right side
312,378.10x = 76,156,528,705.08 - Step 5: Solve for x
x = 76,156,528,705.08/312,378.10 - Step 6: Final answer
x = 243,795.99
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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.