Finding the Fourth Proportional to 311,408.58, 466,749.96 and 142,946.70
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Solution
The fourth proportional to 311,408.58, 466,749.96 and 142,946.70 is: 214,253.46
Step by Step Solution
- Step 1: Write the proportion equation
311,408.58 : 466,749.96 = 142,946.70 : x - Step 2: Convert to fraction form
311,408.58/466,749.96 = 142,946.70/x - Step 3: Cross multiply
311,408.58x = 466,749.96 × 142,946.70 - Step 4: Simplify right side
311,408.58x = 66,720,366,507.13 - Step 5: Solve for x
x = 66,720,366,507.13/311,408.58 - Step 6: Final answer
x = 214,253.46
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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.