Finding the Fourth Proportional to 396,977.36, 547,831.00 and 215,690.75
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Solution
The fourth proportional to 396,977.36, 547,831.00 and 215,690.75 is: 297,654.45
Step by Step Solution
- Step 1: Write the proportion equation
396,977.36 : 547,831.00 = 215,690.75 : x - Step 2: Convert to fraction form
396,977.36/547,831.00 = 215,690.75/x - Step 3: Cross multiply
396,977.36x = 547,831.00 × 215,690.75 - Step 4: Simplify right side
396,977.36x = 118,162,077,634.81 - Step 5: Solve for x
x = 118,162,077,634.81/396,977.36 - Step 6: Final answer
x = 297,654.45
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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.