Finding the Fourth Proportional to 249,860.75, 344,806.75 and 135,139.50
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Solution
The fourth proportional to 249,860.75, 344,806.75 and 135,139.50 is: 186,491.92
Step by Step Solution
- Step 1: Write the proportion equation
249,860.75 : 344,806.75 = 135,139.50 : x - Step 2: Convert to fraction form
249,860.75/344,806.75 = 135,139.50/x - Step 3: Cross multiply
249,860.75x = 344,806.75 × 135,139.50 - Step 4: Simplify right side
249,860.75x = 46,597,011,791.63 - Step 5: Solve for x
x = 46,597,011,791.63/249,860.75 - Step 6: Final answer
x = 186,491.92
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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.