Finding the Fourth Proportional to 249,486.13, 344,290.86 and 136,309.69
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Solution
The fourth proportional to 249,486.13, 344,290.86 and 136,309.69 is: 188,107.37
Step by Step Solution
- Step 1: Write the proportion equation
249,486.13 : 344,290.86 = 136,309.69 : x - Step 2: Convert to fraction form
249,486.13/344,290.86 = 136,309.69/x - Step 3: Cross multiply
249,486.13x = 344,290.86 × 136,309.69 - Step 4: Simplify right side
249,486.13x = 46,930,177,993.43 - Step 5: Solve for x
x = 46,930,177,993.43/249,486.13 - Step 6: Final answer
x = 188,107.37
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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.