Finding the Fourth Proportional to 252,907.19, 349,011.38 and 138,186.65
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Solution
The fourth proportional to 252,907.19, 349,011.38 and 138,186.65 is: 190,697.28
Step by Step Solution
- Step 1: Write the proportion equation
252,907.19 : 349,011.38 = 138,186.65 : x - Step 2: Convert to fraction form
252,907.19/349,011.38 = 138,186.65/x - Step 3: Cross multiply
252,907.19x = 349,011.38 × 138,186.65 - Step 4: Simplify right side
252,907.19x = 48,228,713,512.21 - Step 5: Solve for x
x = 48,228,713,512.21/252,907.19 - Step 6: Final answer
x = 190,697.28
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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.