Finding the Fourth Proportional to 396,988.70, 547,837.76 and 215,703.41
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Solution
The fourth proportional to 396,988.70, 547,837.76 and 215,703.41 is: 297,667.09
Step by Step Solution
- Step 1: Write the proportion equation
396,988.70 : 547,837.76 = 215,703.41 : x - Step 2: Convert to fraction form
396,988.70/547,837.76 = 215,703.41/x - Step 3: Cross multiply
396,988.70x = 547,837.76 × 215,703.41 - Step 4: Simplify right side
396,988.70x = 118,170,470,758.83 - Step 5: Solve for x
x = 118,170,470,758.83/396,988.70 - Step 6: Final answer
x = 297,667.09
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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.