Finding the Fourth Proportional to 213,559.84, 294,704.64 and 122,929.76
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Solution
The fourth proportional to 213,559.84, 294,704.64 and 122,929.76 is: 169,638.50
Step by Step Solution
- Step 1: Write the proportion equation
213,559.84 : 294,704.64 = 122,929.76 : x - Step 2: Convert to fraction form
213,559.84/294,704.64 = 122,929.76/x - Step 3: Cross multiply
213,559.84x = 294,704.64 × 122,929.76 - Step 4: Simplify right side
213,559.84x = 36,227,970,666.09 - Step 5: Solve for x
x = 36,227,970,666.09/213,559.84 - Step 6: Final answer
x = 169,638.50
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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.