Finding the Fourth Proportional to 389,624.63, 537,676.72 and 217,545.24
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Solution
The fourth proportional to 389,624.63, 537,676.72 and 217,545.24 is: 300,209.49
Step by Step Solution
- Step 1: Write the proportion equation
389,624.63 : 537,676.72 = 217,545.24 : x - Step 2: Convert to fraction form
389,624.63/537,676.72 = 217,545.24/x - Step 3: Cross multiply
389,624.63x = 537,676.72 × 217,545.24 - Step 4: Simplify right side
389,624.63x = 116,969,013,485.01 - Step 5: Solve for x
x = 116,969,013,485.01/389,624.63 - Step 6: Final answer
x = 300,209.49
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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.