Finding the Fourth Proportional to 249,138.88, 343,811.56 and 135,961.63
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Solution
The fourth proportional to 249,138.88, 343,811.56 and 135,961.63 is: 187,626.99
Step by Step Solution
- Step 1: Write the proportion equation
249,138.88 : 343,811.56 = 135,961.63 : x - Step 2: Convert to fraction form
249,138.88/343,811.56 = 135,961.63/x - Step 3: Cross multiply
249,138.88x = 343,811.56 × 135,961.63 - Step 4: Simplify right side
249,138.88x = 46,745,178,911.01 - Step 5: Solve for x
x = 46,745,178,911.01/249,138.88 - Step 6: Final answer
x = 187,626.99
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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.