Finding the Fourth Proportional to 249,115.50, 343,786.68 and 135,945.54
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Solution
The fourth proportional to 249,115.50, 343,786.68 and 135,945.54 is: 187,608.82
Step by Step Solution
- Step 1: Write the proportion equation
249,115.50 : 343,786.68 = 135,945.54 : x - Step 2: Convert to fraction form
249,115.50/343,786.68 = 135,945.54/x - Step 3: Cross multiply
249,115.50x = 343,786.68 × 135,945.54 - Step 4: Simplify right side
249,115.50x = 46,736,265,857.41 - Step 5: Solve for x
x = 46,736,265,857.41/249,115.50 - Step 6: Final answer
x = 187,608.82
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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.