Finding the Fourth Proportional to 383,857.76, 529,724.64 and 214,102.88
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Solution
The fourth proportional to 383,857.76, 529,724.64 and 214,102.88 is: 295,462.49
Step by Step Solution
- Step 1: Write the proportion equation
383,857.76 : 529,724.64 = 214,102.88 : x - Step 2: Convert to fraction form
383,857.76/529,724.64 = 214,102.88/x - Step 3: Cross multiply
383,857.76x = 529,724.64 × 214,102.88 - Step 4: Simplify right side
383,857.76x = 113,415,571,030.96 - Step 5: Solve for x
x = 113,415,571,030.96/383,857.76 - Step 6: Final answer
x = 295,462.49
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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.