Finding the Fourth Proportional to 253,448.48, 349,757.97 and 137,161.71
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Solution
The fourth proportional to 253,448.48, 349,757.97 and 137,161.71 is: 189,282.66
Step by Step Solution
- Step 1: Write the proportion equation
253,448.48 : 349,757.97 = 137,161.71 : x - Step 2: Convert to fraction form
253,448.48/349,757.97 = 137,161.71/x - Step 3: Cross multiply
253,448.48x = 349,757.97 × 137,161.71 - Step 4: Simplify right side
253,448.48x = 47,973,401,251.33 - Step 5: Solve for x
x = 47,973,401,251.33/253,448.48 - Step 6: Final answer
x = 189,282.66
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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.