Finding the Fourth Proportional to 249,390.75, 344,161.06 and 136,213.50
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Solution
The fourth proportional to 249,390.75, 344,161.06 and 136,213.50 is: 187,975.63
Step by Step Solution
- Step 1: Write the proportion equation
249,390.75 : 344,161.06 = 136,213.50 : x - Step 2: Convert to fraction form
249,390.75/344,161.06 = 136,213.50/x - Step 3: Cross multiply
249,390.75x = 344,161.06 × 136,213.50 - Step 4: Simplify right side
249,390.75x = 46,879,382,546.31 - Step 5: Solve for x
x = 46,879,382,546.31/249,390.75 - Step 6: Final answer
x = 187,975.63
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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.