Finding the Fourth Proportional to 283,516.20, 424,691.10 and 143,353.80
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Solution
The fourth proportional to 283,516.20, 424,691.10 and 143,353.80 is: 214,735.82
Step by Step Solution
- Step 1: Write the proportion equation
283,516.20 : 424,691.10 = 143,353.80 : x - Step 2: Convert to fraction form
283,516.20/424,691.10 = 143,353.80/x - Step 3: Cross multiply
283,516.20x = 424,691.10 × 143,353.80 - Step 4: Simplify right side
283,516.20x = 60,881,083,011.18 - Step 5: Solve for x
x = 60,881,083,011.18/283,516.20 - Step 6: Final answer
x = 214,735.82
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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.