Finding the Fourth Proportional to 312,241.18, 430,903.26 and 191,359.12
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Solution
The fourth proportional to 312,241.18, 430,903.26 and 191,359.12 is: 264,081.98
Step by Step Solution
- Step 1: Write the proportion equation
312,241.18 : 430,903.26 = 191,359.12 : x - Step 2: Convert to fraction form
312,241.18/430,903.26 = 191,359.12/x - Step 3: Cross multiply
312,241.18x = 430,903.26 × 191,359.12 - Step 4: Simplify right side
312,241.18x = 82,457,268,638.73 - Step 5: Solve for x
x = 82,457,268,638.73/312,241.18 - Step 6: Final answer
x = 264,081.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.