Finding the Fourth Proportional to 249,628.09, 344,486.78 and 136,450.84
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Solution
The fourth proportional to 249,628.09, 344,486.78 and 136,450.84 is: 188,302.17
Step by Step Solution
- Step 1: Write the proportion equation
249,628.09 : 344,486.78 = 136,450.84 : x - Step 2: Convert to fraction form
249,628.09/344,486.78 = 136,450.84/x - Step 3: Cross multiply
249,628.09x = 344,486.78 × 136,450.84 - Step 4: Simplify right side
249,628.09x = 47,005,510,499.90 - Step 5: Solve for x
x = 47,005,510,499.90/249,628.09 - Step 6: Final answer
x = 188,302.17
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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.