Finding the Fourth Proportional to 249,797.88, 344,721.08 and 136,620.63
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Solution
The fourth proportional to 249,797.88, 344,721.08 and 136,620.63 is: 188,536.47
Step by Step Solution
- Step 1: Write the proportion equation
249,797.88 : 344,721.08 = 136,620.63 : x - Step 2: Convert to fraction form
249,797.88/344,721.08 = 136,620.63/x - Step 3: Cross multiply
249,797.88x = 344,721.08 × 136,620.63 - Step 4: Simplify right side
249,797.88x = 47,096,008,717.17 - Step 5: Solve for x
x = 47,096,008,717.17/249,797.88 - Step 6: Final answer
x = 188,536.47
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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.