Finding the Fourth Proportional to 249,212.88, 343,918.48 and 136,039.68
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Solution
The fourth proportional to 249,212.88, 343,918.48 and 136,039.68 is: 187,737.33
Step by Step Solution
- Step 1: Write the proportion equation
249,212.88 : 343,918.48 = 136,039.68 : x - Step 2: Convert to fraction form
249,212.88/343,918.48 = 136,039.68/x - Step 3: Cross multiply
249,212.88x = 343,918.48 × 136,039.68 - Step 4: Simplify right side
249,212.88x = 46,786,559,965.29 - Step 5: Solve for x
x = 46,786,559,965.29/249,212.88 - Step 6: Final answer
x = 187,737.33
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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.