Finding the Fourth Proportional to 381,761.62, 526,831.98 and 211,995.74
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Solution
The fourth proportional to 381,761.62, 526,831.98 and 211,995.74 is: 292,554.65
Step by Step Solution
- Step 1: Write the proportion equation
381,761.62 : 526,831.98 = 211,995.74 : x - Step 2: Convert to fraction form
381,761.62/526,831.98 = 211,995.74/x - Step 3: Cross multiply
381,761.62x = 526,831.98 × 211,995.74 - Step 4: Simplify right side
381,761.62x = 111,686,135,455.77 - Step 5: Solve for x
x = 111,686,135,455.77/381,761.62 - Step 6: Final answer
x = 292,554.65
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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.