Finding the Fourth Proportional to 203,309.96, 280,555.04 and 112,660.63
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Solution
The fourth proportional to 203,309.96, 280,555.04 and 112,660.63 is: 155,464.63
Step by Step Solution
- Step 1: Write the proportion equation
203,309.96 : 280,555.04 = 112,660.63 : x - Step 2: Convert to fraction form
203,309.96/280,555.04 = 112,660.63/x - Step 3: Cross multiply
203,309.96x = 280,555.04 × 112,660.63 - Step 4: Simplify right side
203,309.96x = 31,607,507,136.34 - Step 5: Solve for x
x = 31,607,507,136.34/203,309.96 - Step 6: Final answer
x = 155,464.63
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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.