Finding the Fourth Proportional to 249,107.12, 343,764.60 and 135,927.92
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Solution
The fourth proportional to 249,107.12, 343,764.60 and 135,927.92 is: 187,578.77
Step by Step Solution
- Step 1: Write the proportion equation
249,107.12 : 343,764.60 = 135,927.92 : x - Step 2: Convert to fraction form
249,107.12/343,764.60 = 135,927.92/x - Step 3: Cross multiply
249,107.12x = 343,764.60 × 135,927.92 - Step 4: Simplify right side
249,107.12x = 46,727,207,047.63 - Step 5: Solve for x
x = 46,727,207,047.63/249,107.12 - Step 6: Final answer
x = 187,578.77
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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.