Finding the Fourth Proportional to 418,408.56, 577,409.70 and 227,421.96
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Solution
The fourth proportional to 418,408.56, 577,409.70 and 227,421.96 is: 313,845.50
Step by Step Solution
- Step 1: Write the proportion equation
418,408.56 : 577,409.70 = 227,421.96 : x - Step 2: Convert to fraction form
418,408.56/577,409.70 = 227,421.96/x - Step 3: Cross multiply
418,408.56x = 577,409.70 × 227,421.96 - Step 4: Simplify right side
418,408.56x = 131,315,645,697.01 - Step 5: Solve for x
x = 131,315,645,697.01/418,408.56 - Step 6: Final answer
x = 313,845.50
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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.