Finding the Fourth Proportional to 249,808.44, 344,738.36 and 136,628.76
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Solution
The fourth proportional to 249,808.44, 344,738.36 and 136,628.76 is: 188,549.17
Step by Step Solution
- Step 1: Write the proportion equation
249,808.44 : 344,738.36 = 136,628.76 : x - Step 2: Convert to fraction form
249,808.44/344,738.36 = 136,628.76/x - Step 3: Cross multiply
249,808.44x = 344,738.36 × 136,628.76 - Step 4: Simplify right side
249,808.44x = 47,101,174,651.23 - Step 5: Solve for x
x = 47,101,174,651.23/249,808.44 - Step 6: Final answer
x = 188,549.17
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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.