Finding the Fourth Proportional to 253,559.99, 349,911.49 and 138,836.56
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Solution
The fourth proportional to 253,559.99, 349,911.49 and 138,836.56 is: 191,593.74
Step by Step Solution
- Step 1: Write the proportion equation
253,559.99 : 349,911.49 = 138,836.56 : x - Step 2: Convert to fraction form
253,559.99/349,911.49 = 138,836.56/x - Step 3: Cross multiply
253,559.99x = 349,911.49 × 138,836.56 - Step 4: Simplify right side
253,559.99x = 48,580,507,576.07 - Step 5: Solve for x
x = 48,580,507,576.07/253,559.99 - Step 6: Final answer
x = 191,593.74
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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.