Finding the Fourth Proportional to 355,811.76, 490,850.58 and 219,796.74
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Solution
The fourth proportional to 355,811.76, 490,850.58 and 219,796.74 is: 303,214.70
Step by Step Solution
- Step 1: Write the proportion equation
355,811.76 : 490,850.58 = 219,796.74 : x - Step 2: Convert to fraction form
355,811.76/490,850.58 = 219,796.74/x - Step 3: Cross multiply
355,811.76x = 490,850.58 × 219,796.74 - Step 4: Simplify right side
355,811.76x = 107,887,357,311.11 - Step 5: Solve for x
x = 107,887,357,311.11/355,811.76 - Step 6: Final answer
x = 303,214.70
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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.