Finding the Fourth Proportional to 396,584.74, 547,288.41 and 215,297.02
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Solution
The fourth proportional to 396,584.74, 547,288.41 and 215,297.02 is: 297,110.68
Step by Step Solution
- Step 1: Write the proportion equation
396,584.74 : 547,288.41 = 215,297.02 : x - Step 2: Convert to fraction form
396,584.74/547,288.41 = 215,297.02/x - Step 3: Cross multiply
396,584.74x = 547,288.41 × 215,297.02 - Step 4: Simplify right side
396,584.74x = 117,829,563,753.54 - Step 5: Solve for x
x = 117,829,563,753.54/396,584.74 - Step 6: Final answer
x = 297,110.68
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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.